Cascadia Wildlife Blog
News from the Wolverine Tracking Project and more
Before we get into the findings, though, we want to share some of the happenings at Cascadia Wild. We hope everyone has been staying cool but still enjoying the warm weather as an opportunity to get outside and explore. If you want a little inspiration to get out there, we have some ideas!
Also, this month we published the 2020-21 Cascadia Wild Annual Report! Each report includes a message from Teri Lysak, Board Chair, annual expenses and income, and a summary of our programs and accomplishments, including the Wolverine Tracking Project, classes, clubs, and community engagement.
ICYMI: Check out our official Wolverine Tracking Project Annual Research Report, which summarizes all the wildlife findings from 2020-21's camera, tracking, fox, and wolf surveys!
Looking for a new series to watch? How about one about wildlife?
With new technological advances, nature documentaries have reached a whole new level. Check out Night on Earth and Earth at Night in Color for some never-before seen nighttime wildlife viewing!
Many animals are most active at night, when it's hardest for humans - and most cameras - to see. These two documentary series enlighten us to new behaviors, giving us more insight into animals' mysterious lives.
Now onto the highlights from our very own wildlife cameras! We've seen creatures big, small, & everything in between - from black bears to golden mantled ground squirrels and more. Cameras have also documented the arrival of new babies in the forest! So come along as we show you the best of the best from this past month.
Our first species is the black bear; these omnivores sure do have big personalities! Keep scrolling to see what black bears do when it warms up in the forest (you definitely don't want to miss the last one!).
Top to bottom, left to right: A black bear rubs up on the bait box, showing a white chest; a possible subadult walks in front of some flowering bear grass; a black bear is caught with a tongue out; a black bear is seen climbing a tree; likely a male, this black bear shows signs of scars on his head from dueling; a male and female mate.
Now onto our carnivores - first up for felines is the bobcat. Bobcat sightings always pique our interest, and this time we found two on camera, a rare occurrence! This duo is likely mother and offspring. Juveniles will leave their mother's care and disperse to find territory of their own in late winter or early spring coming into their second year. Bobcats will disperse before they reach 2 years old, males traveling further than females to find new territory.
Top to bottom: two bobcats stroll through, one after the other; a solitary bobcat walks by.
Our second and last feline is the mountain lion. We've caught a few mountain lions on camera this summer. These solitary hunters have been seen during the daytime and at night.
Top to bottom, left to right: a mountain lion strolls through the camera site during the day; a mountain lion passes through the site at night; a mountain lion rubs its cheek along the bait box.
Coyotes were the only members of the canine family detected on our cameras this month. Still, they provided us with plenty to look at!
Top to bottom, left to right: A coyote rolls around in the snow next to the bait box; a pair of coyotes visits, one urinates on the tree before taking off in the next photo.
Turkeys, adult and juvenile, were seen on a volunteer-owned camera. The little ones like to follow mom around, and are a spotty brown color.
Three adult turkeys and their offspring check out the camera site, then move offscreen in single file on a log.
Nearly every camera we have set up documented deer. These abundant creatures also happen to give birth in the spring, so we have lots of cute fawns to share with you!
Top to bottom: A doe and fawn, still with spots, walk along the forest floor; two fawns with their spots glowing in the dark, sniff the camera site.
Look at the progression between these two deer from late May to mid June - male deer, or bucks, start growing their antlers during early spring and finish in the fall, when they mate. The females carry the offspring through the winter, and give birth in the spring. Then the whole season starts again!
Left to right (or top to bottom) : A young buck starts to grow his antlers; a buck shows off his velvety antlers; a doe and fawn pass by; two fawns stop to check out the camera site; a deer blows a raspberry.
These animals may be small - but they certainly don't act that way. See these mischievous squirrels and woodrats in action!
Western gray squirrels are below; these squirrels are larger than Douglas squirrels and have a white belly and gray coat. What really gives them away is their massive, bushy tail though!
Left to right (or top to bottom): a western gray squirrel eats on top of a downed log; two western gray squirrels chase one another on horizontal log.
Here's a Douglas squirrel in action - notice the smaller build and tail than that of the western gray squirrel. This particular individual ran over the bait box and shifted it slightly.
A Douglas squirrel scampers on a log, going up and over the bait box, moving it slightly.
Our second to last rodent is the bushy-tailed woodrat, whose eyes shine brightly in the dark. The woodrat has a round tail, and can easily be confused with the northern flying squirrel which has a flatter tail. Both of these animals are nocturnal, and are seen almost exclusively at night. This woodrat decided to have a little fun with our bait box!
A bushy-tailed woodrat moves the bait box.
A northern flying squirrel is shown below for reference. The flat tail is a good giveaway for these tricky night squirrels. It may come as a surprise to many people to see these squirrels in the forest!
Left to right (or top to bottom): A northern flying squirrel sits on a log with its body towards the camera; a northern flying squirrel shows off its tail.
Wolf & fox Scat surveys
Although our cameras didn't pick up any detections of our target canines - the gray wolf and Sierra Nevada red fox - our diligent volunteers did find some (potential) neat scat of each while surveying forest trails for genetic samples and sign!
The volunteer who found the scat shown below broke it apart, revealing digested hair, bones, and grass (circled in red)!
Top: An intact, old scat. Bottom: The same scat broken apart, with vegetation circled in red.
But who could this belong to? Felines will eat vegetation to clear out their stomachs, but not to this extent. Therefore, we've ruled this scat is likely from a canid, since the dog family is a bit more omnivorous. The average diameter is just shy of 1.25" inches, our cutoff size limit for wolf scat collection. All coyotes will leave scat smaller than this, but some domestic dogs might leave scat this size. Domestic dogs are also capable of eating a large amount of vegetation, but likely would not have hair and bones inside their scat, making this a good candidate for possible gray wolf scat. Unfortunately, this scat is likely too old to gather DNA from.
So far this summer, volunteers have collected several possible Sierra Nevada red fox scats! Two of these are shown below. As canine scat, they are tapered at the ends and twisted, but are much smaller than wolf scat and coyote scat, about the size of a pinky. The presence of hair potentially eliminates domestic dogs as a possible culprit as well. Although we can't know for sure until the samples are analyzed, these are also good candidates for possible fox scats!
The two photos above show the twisted scat with tapered ends that may belong to a red fox.
While camera crews and the fox and wolf teams are out in the woods, they often find some pretty interesting signs of wildlife!
One camera crew confirmed that, like foxes and wolves, bears do indeed relieve themselves in the woods.
A large pile of bear scat (normal sized for a bear) with a hiking boot for reference.
Bear scat can have different shapes and consistencies, depending on the seasonal availability of different foods and their changing diet. However, there is always quite a lot of it!
A member on our wolf team also found this well-preserved bear skeleton:
Detail of a bear skull (top) and the rest of the remaining bear skeleton (bottom).
Sometimes, the signs that wildlife leave behind of their presence can present a good story, like this bit of cambium chew on a small tree. Below this sapling, is a rodent hole - given the teeth marks and location, the very same rodent to burrow in this hole is also likely chewing on this tree. Pretty handy to have your kitchen pantry so close by!
Top: A small tree showing signs of cambium chew. The teeth marks indicate that the animal responsible is a small rodent. Bottom two: A burrow at the base of the small tree with tiny rodent tracks shown entering and leaving.
Sometimes, we are lucky enough to see actual wildlife, and not just sign of their presence, while in the forest!
Top to bottom and left to right: A tree swallow sits on a fence line; a fence lizard basks on a stump; two ground squirrels peek out of their burrow; a turkey vulture feasts on some carrion in the road; a second turkey vulture in flight.
That's all we've got for this month! Thanks for supporting the Wolverine Tracking Project, and we hope to see you back here next month for more of the exciting wildlife news from Mt. Hood!
As winter sets in, the days grow longer, providing more opportunity to enjoy the abundance of the natural world and offering hope for the days to come.
From all of us at Cascadia Wild, may you have many blessings in the new year.
As we look back at 2020, a year of many challenges and changes, the unwavering presence of our community stands out most of all. Thank you for showing up, offering your support, and committing your time and energy to volunteer, expand your naturalist skills, join our clubs, or simply read along and take part in our news and stories. Thank you for being there.
As we look ahead to 2021, we are excited to be continuing the community science Wolverine Tracking Project wildlife surveys on Mt. Hood. We are also looking forward to offering new classes that explore the local, natural world, and to continuing our community clubs. We hope to expand these programs and our community, better reaching underserved groups so that we all can partake in a deeper relationship with the flora, fauna, and landscape of the Pacific Northwest.
We look forward to you being there as well!
If you are able and would like to help support our goals in 2021, please consider making a year-end contribution. All donations will be generously matched through January 2nd!
Whether you can give $1 or $100, you help shape the future of Cascadia Wild.
Our heartfelt gratitude to everyone who is able to contribute their time, money, skills, and knowledge.
We are Cascadia Wild!
Summer Season Review
In footage from this summer that was only retrieved recently, we detected these two gray wolves:
Two gray wolves walk by the trail camera
Due to the angle of the camera and the placement of the animals, these individuals were hard to identify, but here are a few of our justifications. Both these individuals have large feet and an overall gray, grizzled coat, and the second wolf has a significant amount of black in their coat. While there is overlap between wolves and coyotes in both paw size and coat coloration, coyotes more often display tawny coloration and smaller feet than gray wolves. Furthermore, the second wolf individual has a broader face and smaller ears in proportion to their face than we would expect from a coyote. Even with those justifications, this is still a really hard identification. Determining the differences between coyotes and wolves is difficult and is a skill that benefits from time and practice - if you would like to test your own skills, check out this quiz from ODFW!
This is Cascadia Wild's fourth detection of gray wolves! Woohoo! Our first detection was in the summer of 2018, where we detected the White River breeding pair. This was one of the preliminary documentations of this pair in Mt. Hood National Forest. In the summer of 2019, we detected two wolves at two different locations. Oregon Department of Fish and Wildlife believes that these were also the White River breeding pair. This most recent detection was on the east side of the forest within areas of known wolf activity of the White River pack, so we can make an educated assumption that these individuals also belong to the White River pack. Furthermore, ODFW has also advised that their coloration is consistent with the other members of the White River pack. This is very exciting news and it confirms that our White River pack is still utilizing the same territory.
This year we had seven detections of our target species Sierra Nevada red fox at two sites! We detected Sierra fox in both alpine and subalpine habitats.
A Sierra Nevada red fox stands by a rock with Mt Hood in the background
A Sierra Nevada red fox inspects a tree felled by a windstorm
Historically, the majority of our fox detections occur during winter. One previous hypothesis as to why we saw so many more during the winter was that they might be experiencing food scarcity and therefore more drawn to our winter meat baits. However, these numerous summer sightings molded a new working hypothesis - for two summers in a row we have detected Sierra fox at high elevations, which suggests that these foxes may be seasonal migrants, spending the summer months at higher elevation, where there are less trees for us to install our cameras, and descending to somewhat lower elevations during the winter months. We cannot wait to see what new information arises in future seasons!
Along with our target species, we have also had a couple new detections this season!
We have never detected these species on our trail cameras before.
We detected an American mink...
A mink scampers across a fallen tree
...and a couple of bats!
Bats fly in front of one of our trail cameras
Though we have detected grouse in past seasons, we have never captured a moment like this.
See the exposed patch on the side of the neck? Those are the air sacs of a male sooty grouse, presented in their mating display! This individual was seen not long after a female grouse was also detected. Maybe we'll see some juvenile grouselings in this area next summer!
A mating display of a sooty grouse
It is exciting to have so many new faces, but we always appreciate visits from our regular crew of Mt. Hood mammals. Documenting a wide variety of wildlife allows us to add to our ever-growing knowledge of the forest.
Some species were recurrent throughout the forest, and we received images of them from around Mt. Hood and the eastern boundary.
Our most frequent visitor by far was deer! Individuals or small herds were detected at 95% of all our camera sites, which means they were present at all but one site. Our camera footage allowed us to watch fawns grow up and antlers mature.
Left to right, top to bottom: A doe looks into the camera, a buck shows off their antlers, a fawn sneaks between a gap in a log, a doe and fawn share a sweet moment
Their ungulate cousin, elk, were also detected on our cameras. They said hello to 8 of our cameras throughout the forest.
Left to right, top to bottom: A cow looks at the camera, a bull walks through a camera site, a cow pauses with her calf and looks back at our trail camera
Another frequent visitor was coyote, who was spotted at 70% of of our sites. Consistent with past years, coyotes were prevalent all over the map. These opportunistic feeders can be found in alpine, subalpine, and montane habitats throughout Mt. Hood National Forest.
A coyote walks by
One of our favorite individuals this season spent a few minutes rolling around at one of our sites.
Video: A coyote rolls in our scent bait at the base of a short rock wall
Another regular was a fan favorite... the black bear!
A black bear pauses with their paw on a log
Let's not forget the rolling cubs! You should really watch those videos, they will brighten your day!
Videos: Black bear cubs roll at the location of our stinky scent bait at the base of a stump or log
Bobcats visited 7 of our sites. These solitary cats were found in both subalpine and montane habitats.
A bobcat pauses in the middle of a camera site
We also detected a variety of squirrels all over the map, including the Douglas squirrel...
A Douglas squirrel sits on the branch of a fallen tree
...Northern flying squirrel...
A Northern flying squirrel runs across a log
...and the golden mantled ground squirrel.
A golden mantled ground squirrel pops their into the camera frame
Mountain lion was only detected on the east side of the forest this season, and only at two sites. This is slightly unusual because mountain lions were detected at 5 different camera sites last summer and 4 different camera sites two summers ago. While we can't draw any concrete conclusions from these observations, cougar distribution will be interesting to track in future summer surveys.
A mountain lion walks towards the trail camera
There were a handful of smaller critters who were only detected on the eastern side of the forest, including striped skunks.
A striped skunk looks at the ground below the log it is standing on
We only detected California ground squirrels on the east side of the forest. We do not usually find California ground squirrels or striped skunks close to Mt. Hood, so we expected to detect them in this area.
A California ground squirrel is well camouflaged into their surroundings
We also detected chipmunks. Chipmunks can be found in alpine, subalpine, and montane forest throughout the map, so it was unusual to only detect them on the eastern boundary.
A chipmunk stand on the very edge of frame
We also detected quite a few turkeys!
Three turkeys explore a camera site
Besides the Sierra Nevada red fox, there were two species only detected close to Mt. Hood: the yellow-bellied marmot and the raccoon.
We only detected the yellow-bellied marmot at high elevation. Marmots are only found in alpine environments, or sometimes just at the edge of subalpine. They are adapted to live in this environment, munching on alpine vegetation and burrowing in the talus slopes from the first sign of snow until March-May.
A marmot peeks at the camera
This is the only raccoon we detected this summer:
A raccoon ducks behind some brush and out of view of the trail camera
Along with camera data, we also accumulated a mountain of scat throughout the summer. Volunteers on our scat survey teams collect these genetic samples to help add to the narrative about our two target canines: gray wolf and Sierra Nevada red fox.
Members of the Wolf Scat Survey Team surveyed 243 miles and found 10 potential wolf scats on the eastern side of the forest.
Members of the Fox Scat Survey Team covered 54 miles and found 15 potential Sierra Nevada red fox scat samples, mostly around treeline of Mt. Hood!
Left: A testable wolf scat; Right: A testable Sierra fox scat.
The diameter, tapered end, and contents of the scat shown in the photo on the left suggest that this sample is potentially wolf scat. The white-ish hue is due to the scat's age. As wolf scat gets older, it turns from a darker brown to a more chalky white. Even though a scat sample may be older, it is still possible to extract a good amount of DNA for analysis.
We look forward to seeing if any of the scats are a genetic match to their potential species and, if so, to the information that they can tell us about how the native ancestry, distribution, and habitat use of these two important canids. Our scat surveys will resume next summer, when the snows have cleared from the forest.
But, while the snows are here, the camera survey continues and tracking season begins!
Winter wildlife surveys begin!
As the first snows blanket Mt. Hood National Forest, a whole new wintry world of wildlife opens up to the Wolverine Tracking Project. While we are just at the start of the winter wildlife camera and tracking season, please enjoy a compilation of species and tracks observed so far, thanks to the efforts of our amazing volunteers. Look forward to more in the coming months!
A small sapling is progressively blanketed by snow until only the crown is visible.
Snow level can rise several feet very quickly on the mountain, and volunteers anticipate this by gradually raising the height of the bait box so it remains accessible to passing wildlife.
Always a favorite, several charismatic coyotes interacted with camera sites both east and close to Mt. Hood.
Top: A coyote glances at the trail camera, as if unsure.
Middle: A trio of coyotes, yes a trio, sweep through this camera site.
Bottom: A coyote strikes a pose while contemplating that strange odor coming from the bait box.
Coyotes are social and expressive. Always adaptable, coyotes can operate solo, as a mated pair, or as part of a pack. Another great adaptation for winter is their thick coats. In the photo directly above, notice that the snowflakes which have settled on this animal's pelt have not melted, it's insulating properties are an amazing adaptation!
Cat lovers should love out next charismatic carnivore: bobcat.
Top: In this photo, only the reflective eyes of the bobcat are visible at first glance.
Middle: A bobcat almost completely blended into their surroundings.
Bottom: A bobcat sniffs the bait box.
The effect of these glowing eyes, which you may have noticed in photos of your cat or dog, is due to a reflective layer called the tapetum, which gives nocturnal animals night vision by reflecting light back into their retinas. All the better to hunt with!
Bobcat's coats are both beautiful and functional, providing both camouflage and insulating protection. These big cats thrive throughout the winter months due to their thick coats. Their fur can become less brown and more gray during winter which allows them to better camouflage into their surroundings.
Bobcat footprints in the snow.
The heavily furred, large paws of bobcats also help them navigate the snow, kind of like snowshoes!
Black bears were also an occasional visitor to several of our camera sites.
Top: A black bear snuffles the ground in front of a trail camera.
Bottom: a black bear walks through the same site.
Black bears are the only bear species in Oregon so it is very easy for our team to identify their pictures! It won't be long until black bears are in hibernation, so we will enjoy seeing them (from a safe distance) while we can!
Making jokes about weasels and their cousins, which scientists call mustelids, is a must for us at Wolverine Tracking Project (haha).
A weasel bounds through the snow.
Though the weasel above is moving so fast the picture is blurred, the long body and dark-tipped tail are both characteristics of long-tailed weasels.
Top: Weasel footprints in the snow. Bottom: Weasels are also known to meander, and this one weaseled their way into a little natural nook.
A tracker also detected the larger cousin of the weasel: the Pacific marten.
Left: the trail of a Pacific marten; and Right: the detail of a marten's tracks.
The Pacific marten is one of our two mustelid target species. The other is the wolverine, the largest mustelid cousin. While we are still waiting for wolverine to make a return appearance to Mt. Hood, we are always encouraged by the tracks of marten, who are an indicator of a healthy upper-elevation forest. All mustelids have similar footprints, characterized by five clawed toes and an inverted V-shaped heel pad.
No matter the time of year, it is certain that we will have some lovely photos of cervids (deer and elk, keep an eye out for flying cervids over the holidays!)
A spike elk considers the trail camera.
This male elk above is referred to as a "spike elk" meaning he has at least one antler without any branching. This is most common of younger males under six years old, although genetic, environmental, and health factors may also play a role in delayed, mature growth. In his prime, his antlers may grow as many as 6 or 7 branches, each with their own tips or "points." Male elk are called bulls, female elk are called cows, and their offspring are called calves.
Top: Male deer (bucks) seen close up. Bottom: A herd of female deer (does) traverse a lightly snowed field.
These snowy tracks belong to a deer.
Snowshoe hares are always entertaining visitors to camera sites and their tracks are seen more frequently by volunteers than almost any other species.
A peaceful picture of a snowshoe hare in the snow.
Left: a snowshoe hare trail. Right: detail of a snowshoe hare's front and hind tracks.
Although a little difficult to visualize at first, snowshoe hare tracks form a "T" shape. This is due to their bounding gait, where the front feet land and the hind feet follow next, landing just in front of the front feet.
A snowshoe hare pauses under a log. Photo credit: Keri Sprenger, Wolverine Tracking Project Volunteer
A camera crew unexpectedly got to see this bright-eyed snowshoe hare in person! It is very unusual to encounter them in broad daylight, and the volunteer kept a respectful distance from the animal while capturing this image. You never knew what you might see when you venture out into nature!
Striped skunks are our next species.
A skunk holds it's lovely striped tail aloft as it passes by.
Next we have sightings of several squirrel species.
Left: A western gray squirrel pauses (left); while a California ground squirrel also takes a moment of repose (right).
Western gray squirrels are the largest tree squirrel in Oregon. They are rivaled in size by the California ground squirrel (although the prize for largest ground squirrel in Oregon goes to the marmot!). Similar in appearance the western gray squirrel, the California ground squirrel is not gray but very subtly spotted.
Left: An acrobatic Douglas squirrel caught by the camera mid-leap.
Right: A chipmunk, almost impossible to spot at first as it is so well camouflaged against the forest floor.
On the other side of size, Douglas squirrel is one the smallest tree squirrels in Oregon (Northern flying squirrels win for the tiniest tree squirrel). Chipmunks, on the other hand, are even smaller and are the smallest ground squirrels in Oregon.
Squirrel tracks in snow
The squirrel tracks above belong to one of our non-hibernating squirrels of the upper-elevation forest: Douglas squirrel or Northern flying squirrel. They have a similar trail pattern as a snowshoe hare, thanks to their bounding gait, but they are much, much smaller!
Our only ground bird camera visitor was wild turkey.
A "rafter" of wild turkeys foraging.
On our tracking surveys, trackers found these great sooty grouse tracks! Sooty grouse and turkeys are both important ground birds for our forest carnivores.
Tracks from a sooty grouse.
Thank you so much to all our camera crew and tracking teams for venturing out, helping to document the wildlife of Mt. Hood National Forest, and sharing your experiences with us!
Until next time, we thank everyone in the Cascadia Wild Community for their support and wish you all the best in the New Year!
As we head into the thick of Autumn, cooler days and earlier, golden sunsets, we are finding hope in the change of seasons. Like our friends in the forest, we are also busy preparing for the coming winter. We are excited to announce our Winter Wildlife Survey Season, and we hope that you will join us!
As always, volunteers will strap on snowshoes and head to Mt Hood National Forest to help document wildlife on the mountain and search for rare carnivores, like Sierra Nevada red fox, Pacific marten, and gray wolf, and continuing to monitor for wolverine. To help protect our community and offer the opportunity for folks to participate in the Wolverine Tracking Project, we have restructured our Tracking and Camera Surveys. Click the links below to learn more, and apply by October 31st!
Read more about the Wolverine Tracking Project
And, don't forget about our Community Clubs!
Left (top): A stump showing beaver, deer, and human sign, and Right (bottom): mink tracks. Both photos from August Tracking Club.
We hope to see you soon!
With the delayed reopening of Multnomah County, our camera surveys this summer have been limited to only a handful volunteers and staff. Many of our cameras have not been checked since mid- or late-August, as well, due to the wildfires and closures in Mt. Hood National Forest. We can't wait until the forest reopens and we can see who's been visiting our cameras in the past month(s)!
In the meantime, we have some photos to share with you from the footage collected in August.
To start us off, we have one of our target species, the Sierra Nevada red fox!
A Sierra Nevada red fox explores a camera site
This is the third detection of a Sierra Nevada red fox at this camera site this year!
Cascadia Wild has been been collecting data about the Sierra Nevada red fox since their "rediscovery" in Oregon on a Cascadia Wild trail camera in 2012. Most of what we know about Sierra Nevada red foxes come from a population living in Lassen, California, as this is the longest standing red fox study. It is thought that the known California populations together comprise less than 50 individuals. Oregon population numbers are largely unknown and speculative. However, with every passing season, Cascadia Wild and other state, federal, academic, conservation, and nonprofit organizations continue to study red foxes throughout Oregon and add to our growing knowledge of them in the region.
In Oregon, the Sierra Nevada red fox was classified as a Data Gap Species and has since been designated as a Conservation Strategy Species by Oregon Department of Fish and Wildlife. The US Forest Service has designated the Sierra Nevada red fox a sensitive species in Oregon.
Another canine visitor to our cameras was the coyote.
Top to bottom: a coyote pauses at a camera site, and a coyote with its mouth wide open (in a yawn or pant) trots down a game trail.
Both Sierra Nevada red foxes and coyotes are opportunistic eaters, and they both prey on small mammals such as rodents and squirrels, and also eat berries, insects, and carrion. Some studies suggest that they have a competitive relationship with each other due to their similar diets, however sometimes coyotes will prey upon red foxes, while red foxes can benefit from the carrion left behind by coyotes. More research needs to be done on the Sierra Nevada red fox in our region to allow for a more comprehensive comparison of these two canines diets and their relationships.
Another opportunistic carnivore that visited our cameras was a black bear.
An adult black bear sniffs the ground
Just like canines, black bears eat small mammals, roots, berries, and insects. They also eat grasses, fish, large mammals, carrion, and can develop a taste for human garbage - a good reason to always pack out what you pack in and secure your food and trash.
While black bear activity is not new to our cameras, we have been detecting much more rolling than usual! First, our camera detected bear cubs rolling in bait.
Youtube videos of black bear cubs rolling on the ground near scent bait
And then, this past month our camera detected an adult rolling in bait.
An adult black bear rolling near scent bait
We often see canines, and even the occasional feline, rolling in our very potent commercial scent bait - usually to mask their scent from other predators or prey, or to perhaps add their scent to the potpourri as a way of communication. While black bears are known to communicate with scent by rubbing and scratching on trees and posts, it is not very common for them to roll. In past seasons, we've used a particular stinky blend of bait, called gusto, as a broadcast scent lure. This would hang in a canister from a tree, and the canisters were often found torn off the tree and smashed to bits. It seems the bears could not keep their paws (and jaws) off! This year, we are using gusto as one of our baits instead. The bait is applied underneath a log or protected area, and it seems possible that is has the same strong appeal.
Our cameras also detected a couple of big cats this past month, like these bobcats.
Top to bottom: A bobcat walks through a camera site, a bobcat pauses by a log at a camera site
And the other big cat detection was of a mountain lion.
A mountain lion walks through a camera site.
Though both big cats roam the forest, there are many key differences between them.
Another regular on our trail cameras is deer. We have received quite a few tender photos of does and their fawns.
Top: A doe walks through a camera site followed by her fawn
Bottom: A doe and her fawn look at each other
According to the Washington Department of Fish and Wildlife most does and bucks do not live more than five years and very rarely live more than ten years. A doe can start reproducing at the age of one and can give birth to one or several fawns a year, meaning a doe will reproduce regularly throughout her life. A doe and her fawn nurture a close relationship until the fawn is weaned. In this approximately three month period the doe will carefully protect her young from predators and fawns will spend most of their time hiding in the woods or brush. Their mother will visit them throughout the day for feeding. Most fawns are born in spring, so by now most fawns are completely weaned and beginning to be less reliant on their mother. Their coats at this time will have lost their spots, in exchange for the coat of an adult.
Another ungulate friend visited our cameras this month - elk!
An elk cow's head in profile close to the camera, with a bit of vegetation hanging from her mouth
Deer and elk are both ungulates with many similarities including their digestion process and reproductive cycle. Both are ruminants, meaning they have a four chambered stomach with bacteria which allows them to digest nearly all plant matter (lucky them!). They also both mate in the fall and fawns are born in the spring. However, elk are much larger than deer and communicate louder and more distinctively than deer. And while they can both eat a wide variety of plant matter, elk are grazers and deer are browsers. Elk will feed on a variety of grasses whereas deer prefer woody plants, but will also eat shoots, leaves, and grasses.
As mating season approaches, elk's antlers will reach full maturity and they will shed their antler velvet.
Left to right: A bull elk walks through the site, a bull elk walks through the site and there are a pair of eyes in the background.
The bull in the image above seems to be shedding his velvet (indicated by the loose skin-like material hanging on his face). And there are a pair of eyes behind him... just in time for spooky season!
We also had a fair number of small critter visitors, such as a striped skunk...
A skunk dashes off a log
...as well as a rabbit...
A rabbit sits on a log
...a yellow-bellied marmot...
A marmot stands by a rock with Mt Hood in the background
...and a couple golden mantled ground squirrels.
Two golden mantled ground squirrels stand in a camera site
Though they are small, mammals like skunks, rabbits, and marmot are important to their ecosystem. They act as pollinators, seed dispersers, support forest regeneration and maintain forest health, aerate soil and allow for increased plant diversity, provide food for carnivores, and enrich our recreational experience.
And the final trail camera photo is a Cascadia Wild first, and just in time for Halloween!
Our camera detected bats!
Bats fly in front of the camera
Out of the 1,300 species of bats in the world, Oregon is home to 15, eight of which are ODFW Conservation Strategy Species. Bats can range greatly in size and weight, and not all species echolocate, but all species are important pollinators, seed dispersers, and, with the exception of vampire bats (which are not in Oregon), are insectivores.
Let's start off with some big scat!
Black bear scat next to a 52mm camera lens cap for reference (the lens cap is approximately 2 inches in diameter)
As we discussed previously, black bears are opportunistic eaters, meaning that they can adapt to what food is available. Based the purple color of this scat, it looks like this bear came across some huckle or blueberries! Berries make up a large portion of a black bear's diet, especially in late summer when the forest is bursting with them.
One of our volunteers conducted a Complete Species Wolf Scat Survey in which all mammal and bird sign encountered are documented, in addition to that of our target species: wolves, Sierra foxes, marten, and wolverine. They found a variety of interesting sign!
A log torn open by a black bear.
This is a dead tree trunk that was torn open by a black bear. In late summer, bears are trying to put on as much weight as they can before hibernation, so all food sources are sought after. Deadfall can be a wonderful source of insects for these omnivores! Though they have the characteristics of a ruthless predator, like strong curved claws and long canine teeth, black bears seldom use them for anything more than climbing trees and consuming insects and fruits. Black bears use both their claws and their canines to break open insect-ridden logs in late summer, to supplement their diet of berries and nuts.
A mountain lion scrape.
This is a mountain lion scrape. With their back legs, a mountain lion will scrape ground-cover backwards to create a small pile with a shallow hole about 8 inches long in front of it. Then, they will urinate on the mound or mark the mound with scat, but no scat was found at this site. This action is a kind of scent marking, and will often be found on the edge of a mountain lion's territory or where their territory overlaps with other cat's territory.
Bones of a deer
Additionally, these bones were found outside of an official survey, by a volunteer on their way to a camera check. These bones belong to a deer, and were found on the eastern side of the forest. This is confirmed habitat for many carnivores that love ungulates, like bobcat, mountain lion, and coyote. This is also suitable habitat for wolves, and ungulates are their preferred meal. While wolves have not yet been confirmed in the particular area where this was found, signs like this are encouraging that they could be.
The forest is full of sign that tells the story of the animals that live there, for those who take the time to look! Whether on the mountain or in your own backyard, we hope you are enjoying the abundant life all around you. Until next time!