The days are getting warmer and longer, the birds are returning from winter migration, and animals everywhere are bringing a new generation of wildlife into our forests...needless to say, winter has ceased and made way for spring, marking the end of our winter survey season. While this season may have been unexpectedly cut short, the Cascadia Wild team of volunteers and members still managed to bring in countless wonderful photos and record many wildlife tracks while it lasted.

Please enjoy this season recap of the Wolverine Tracking Project's Camera and Tracking Survey highlights!

This winter season, a total of 1,447 volunteer hours went into camera survey trips!​

Together, we maintained a total of 21 cameras at 25 camera sites over the winter season.

Over the survey year (which ran from Summer 2019 through Winter 2019-20), our camera sites were divided into two general areas: those near Mt. Hood, and those near the eastern edge of the National Forest boundary, with the intention of targeting different kinds of animals. 

The tables below show the animals detected at each site over the winter season:

A total of 18 different animal species were detected by our cameras, along with a few mystery species pictured below...

Our cameras even captured 3 different target species!

The beautiful Sierra Nevada red fox was pictured at 4 separate camera sites this winter!

Another target species, the gray wolf, was seen at 2 camera sites...

And our final target species was pictured at one camera site: the Pacific marten!

While these target species are incredibly exciting to capture on camera, so are the many other animals that passed through our camera sites!
​
Our most frequent visitor was present at over 64% of all camera sites this winter... You guessed it: the coyote!

Another frequent visitor was the black-tailed deer, present at 52% of our overall camera sites, and over 92% of the eastern forest boundary sites!

Deer weren't the only ungulates spotted in our forests this winter. Elk were present at 5 different camera sites, all in the eastern forest boundary:

Appearing at 10 camera sites, the bobcat was another regular:

The largest felid in our forests, the mountain lion, was present at only 1 camera site this winter:

The black bear was seen at 2 camera sites this winter, including once with some cubs!

Many forest rodent inhabitants made their way into our camera sites, such as squirrels and mice.
Can you spot tell which is a Douglas squirrel and which is our native, nocturnal Northern flying squirrel below?

Snowshoe hares were present at 8 camera sites...

And luckily, we only faced minor sabotage by the striped skunks, who made their way into 5 different camera sites...

A huge THANK YOU to all of the volunteers that made this winter season so great - we look forward to another great summer survey season!

This winter season, a total of 1,213.5 volunteer hours were put into tracking surveys! ​

In total, 47.5 miles were surveyed for tracks at 11 different transect locations! 
The map below shows the locations of our tracking trips this season.

Thanks to all your hard work and attentive tracking, 279 total tracks were recorded, consisting of 8 different species and some mystery tracks!

This table shows our tracking totals for the winter season:

By and large, our winter tracks were dominated by snowshoe hare and squirrel prints.
Pictured below are squirrel tracks (left) alongside snowshoe hare tracks (right).

This season, a total of 117 squirrel tracks were recorded, the most of any species this season!

Second in frequency to squirrel were snowshoe hare, with a total of 113 tracks!

Another frequent sight on these tracking surveys was the deer mouse, with a total of 21 tracks recorded.

Weasel tracks were recorded a total of 13 times​:

Our tracking teams even picked up a target species: the Pacific marten!

A total of 6 coyote tracks were seen...

...and a total of 9 bobcat tracks

Our volunteers also found some beautiful raven tracks in the snow!

​Some mystery tracks were not clear enough to properly identify...

Along with animal tracks, our wildlife tracking teams also found other signs of wildlife in our forests, including these small sticks that indicate a small animal chewing the cambium for food...

...and a tree with signs of bark removal at the base (perhaps from a bear eating the cambium), consumption of the exposed inner tree by insects, and finally, marks left by a woodpecker eating the insects inside the tree.
​So much history visible in one tree!

Near the base of this sign post are marks left by a bear:

Our tracking teams also found a small mystery den:

With so many animal signs recorded - both tracks and otherwise - it has undoubtedly been a very successful winter tracking season!

All in-person classes and events have been cancelled for the time being (read our COVID-19 Statement). However, we are hopeful, planning on, and looking forward to our summer survey wildlife survey season. 

Winter is in full-swing, January brought us deep snows and lots of photos from the Wolverine Tracking Project, and looking ahead, February is shaping up to be a busy month with March not far behind!

See below for news on our camera and tracking surveys. But first, check out some of the classes and events on the calendar.

A big thank you to our volunteers who have been braving the elements to maintain our camera sites! All the fresh snows on Mt Hood have given our camera crews a lot of opportunity for snowshoeing, digging cameras out of the snow, and bringing back some great photos! We've captured a few winter photos like this (below): 

However, thanks to our volunteers braving the elements, we have also detected a lot of wildlife. When the heavy snows weren't burying our cameras, which were originally installed about five and a half feet up a tree, they were making some cameras appear to be at ground level. The result? These wonderful close-ups:

Snow-level cameras also detected some other animals, which make up our marten's carnivorous diet: 

The fresh tracks of the deer mouse show it's hopping gait - though much smaller, it is very similar to the trail a snowshoe hare would leave: small front feet landing first and the larger, more powerful hind feet landing second just ahead of the front feet.

We also detected an up-close and candid portrait of another target species: the Sierra Nevada red fox!

Again, you can see the tracks of this montane fox in the snow. With a meandering trail like this and nose to the ground, it's not hard to assume this fox is hunting. Rodents often burrow into the snow, using the insulating layer as protection from predators and the cold. 

These many visits from these rare, native foxes help us understand their habitat use. We have also collected a few viable hair samples from some of these sites. Like scat samples, hair samples may help give us important genetic information to help us understand their population history, genetic diversity, and habitat connectivity. Hair samples are collected on wire brushes, which are attached to the black belt on the tree just under the bait. 

Our region is home to three kinds of montane fox, the Sierra Nevada red fox (Vulpes vulpes necator) in the Oregon Cascades and Sierras, the Cascade red fox (V.v. cascadensis) found in the Cascades north of the Columbia River, and the Rocky Mountain red fox (V.v. macroura) who are native to northeast Oregon. And, just this week, it was announced that there is a population of Rocky Mountain red fox living near Bend, and likely has been in this area for some time! Just like the Sierra Nevada red fox in our backyard, the montane fox can be elusive and difficult to study, even when they are right under our nose.

Other recent visitors include the ever-present coyote.

We've also detected a few bobcat: 

The bobcat on the right (or bottom), is difficult to make out. However, this lucky visitor is sporting a freshly caught hare! Bobcats (Lynx rufus) are well-adapted for snowy mountains, and, like foxes, marten, and coyotes, snowshoe hare are a favorite snack. Bobcats often hunt at night, and like the marten, don't let their small size fool you! They can cover 10 feet of ground in one pounce.  

We are more likely to see bobcats on the mountain in the winter than their felid cousin, mountain lion. Mountain lions (Puma concolor) are less adapted to snowy environments than bobcat and are more often detected at lower elevations than where most of our cameras are located. 

Another visitor we don't expect to see in the winter? Black bear. However, our cameras did pick up a bear between snows, a bit later than we would expect to see one.

Bears do not hibernate in the same way as most other animals, like some rodents and reptiles, who lower their body temperature along with their metabolism and sleep throughout the whole winter. Instead, they enter a state called torpor where their metabolism slows down, but their body temperature remains elevated and they are able to wake more easily. They can wake from this sleep-state during winter if the weather warms or they are disturbed, and they may even leave their dens, eating opportunistically if they come across food, but do not tend to venture out for long. Other animals that enter a similar torpor state are raccoons and skunks -  plenty of reasons why it is always good to be aware of your surroundings in the forest! Whether this particular bear is taking a mid-torpor stroll or has yet to enter this state for the winter is hard to say. 

One animal, we are not surprised (but always happy) to see is the black-tailed deer. 

Did you know Oregon is home to four native subspecies of deer? Mt Hood National Forest is home to the Columbian black-tailed deer (Odocoileus hemionus columbianus), a subspecies of mule deer. These deer are found from the coastal ranges to the Cascades, and their range runs from California to northern British Columbia (a sister subspecies, Sitka black-tailed deer, is found in Alaska). Rocky Mountain mule deer (O.h. hemionus), another mule deer subspecies, are also native to Oregon, and they are found on the east side of the Cascades summits, most commonly on the east side of our state - fittingly, their range also includes both the American and Canadian Rockies. Black-tailed deer are a little smaller and darker than mule deer, but both have large, mule-like ears. While mule deer seem to prefer open steppe, black-tailed deer tend to prefer brushy areas of coniferous and mixed-coniferous forests, sticking close to clear cuts and burns for browsing opportunities. 

Oregon is also home to two subspecies of white-tailed deer: the Columbian white-tailed deer (Odocoileus virginianus leucurus) and the Northwest (Idaho) white-tailed deer (O.v. ochrourus). The Columbian white-tailed deer is the most rare deer in Oregon. They only live along the lower Columbia River and Umpqua Basin, and the Columbia River population is a federally protected endangered species. The Northwest white-tailed deer is found in the northeastern corner of our state and has a healthy population. As a species, white-tailed deer grow increasingly more abundant as you move toward the east coast. They can be found from Canada to South America and prefer mixed-deciduous forest types.

In our area, you are most likely to see Columbian black-tailed deer - or if you are lucky, the rare Columbian white-tailed deer. Columbian white-tails have long tails they keep held closely to their bodies, and black-tails have shorter tails held loosely to their bodies. If you head a bit further east, you may see the Northwest white-tails; these are the smallest deer of all and have very wide tails. The antlers of each species are different, too. If the antlers are fully developed, white-tailed deer have one main beam on each antler, with points coming of the main beam; black-tailed deer (and mule deer) will typically have a fork coming off the main beam, with points coming off each branch. Check out ODFW's site to read more about our native deer or watch a video on Columbian black- and white-tailed deer identification.

Almost as copious as deer and as perennial as coyote, are our forest corvids.

Plentiful snows, hearty trackers, and some luck have resulted in some great tracking surveys!

One tracking team encountered three separate bobcat trails:

The track quality on these tracks is great, even with a dusting of snow falling after they were laid. These photos show nice clarity of both the individual tracks and the trail pattern, and you can easily see the characteristic felid shape in these tracks. Compared to canid tracks, the whole of the print is quite circular and the thick, oblong pad is surrounded by four evenly spaced "toe beans." When distinguishing between dog and cat tracks, it's better to pay attention to these characteristics, rather than the presence or lack of claws: while felid claws are retractable (and canids are not), a bobcat or mountain lion can extend its claws for traction - something you may see on, say, a snowy/muddy/icy mountainside. 

Distinguishing bobcat from mountain lion is easy, at least for the adults of the two species: go by size! Under 2.25" diameter is likely bobcat; greater than 2.75" is likely mountain lion.

The two tracks we are seeing the most of are snowshoe hare...

...​and squirrel:

The abundance of hare and squirrel is great news for the bobcat, whose tracks were found above, and the rest of our forest carnivores. The photos above show how similar these two animal's tracks are, both animals having bodies well-suited for bounding along, close to the ground. They can be difficult to discern from one another, but hare will be larger than a squirrel, and hare's tracks often have less definition due to the impressive amount of fur covering their pads and toes. Squirrel tracks are also more uniform and boxy - note how well the feet line up on the bottom set of squirrel photos, compared to the more staggered landing of the hare's front feet.

In our forest, we have two kinds of non-hibernating squirrels: the Northern flying squirrel and the Douglas squirrel. However, it is difficult to tell their tracks apart. One way to tell? If you can follow the trail to the start, there will be a "landing strip" where the flying squirrel hit the ground. If you have clear enough tracks, you may be able to tell that the 5th toe on the hind foot (the "pinky toe") is almost as long as any other toe - that's a flying squirrel, too. Read more squirrel track analysis by David Moskowitz. 

Whether in town or on the mountain, we hope to see you soon!

Happy Winter, Happy Holidays, and Happy (almost) New Year!! 

Since our last post, we have transitioned from Fall to Winter, and we have been busy!
Earlier this month, we held our first ever fundraiser, Mystery Tracks, and it was a great success in many ways. Not only did we surpass our fundraising goal, but we had so much fun doing so! We also learned that, regardless of current skillset, there is a tracker in every one of us. Excellent work to all who came out to sleuth some tracks and make this a night for the books! And thank you to Jean’s Farm for hosting, Ecliptic Brewing for the keg, and Steve Engel for the masterful plaster track casts. 

Now that we are officially in Winter, the Wolverine Tracking Project winter surveys are in full swing! We are getting a lot of footage back from our camera surveys, and a handful of tracking surveys have also been completed. There’s a lot more ground and many months still to cover, but we are off to a great start and have a great group of volunteers helping out this season.  Thank you to everyone who is lending their hands, eyes, and time to help document the wildlife of our national forest. 

In case you missed it, we have some big news...

Sources at ODFW indicate that these individuals, detected on separate occasions at different sites, could be the breeding pair of the White River wolf pack, who have taken up residency on the Warm Springs Reservation and the eastern edge of Mt Hood National Forest. A target species of the Wolverine Tracking Project, we are interested in how the presence of gray wolves will shape the ecosystem of the lands they chose to call home. In hopes of also helping to define their range, we will continue to keep a lookout for these newcomers with several cameras positioned along the forest boundary. As the pack grows and disperses, or as other wolves move in, we expect to see more of them. 

​Since the wolf detections above, snows have arrived on our mountain, just in time to greet the season. This means we are seeing a lot more of other kinds of animals at our camera sites, including another of our target species: the Sierra Nevada red fox.

This winter, we have 9 cameras located in the immediate Timberline/Government Camp area and an additional two in the outlying area, all specifically focused on targeting this subspecies, one of the most rare mammals in North America and endemic only to the montane slopes of the Sierras and Cascades south of the Columbia River. As winter sets in, they seem more drawn to our sites than in summer, and frequency of detection increases. This is perhaps due to higher concentrations of red fox at the “lower” elevations of our typical sites (their summer range may include the talus slopes where installing camera traps is more difficult). Or, perhaps they are more drawn to the meat bait in these leaner months. Here we can see video compilation of what looks like two different foxes timidly checking some sites: 

​In both of these videos, the foxes seem drawn to the meat and fox urine we have baited the tree with, yet they are exercising caution. In the second video, what appears to be the same fox came back at least three times over a course of 9 days. Compared to bears or wolverine, who are both notorious when it comes to getting their paws on food, canids tend to be more hesitant, and our Vulpes vulpes necator here is no exception. 

Read more about the Sierra Nevada red fox. 

Coyotes, almost a guaranteed visitor at many of our locations, can also be cautious when it comes to inspecting bait. 

However, coyotes tend to quickly overcome their hesitation and are just as likely to go for a good roll in, or near, the bait (see above)! Whether marking their territory or perfuming their coats, this is one behavior we can almost always count on from these canids.

Family Felidae are also curious about the smells at a site. 

These bobcats are much less hesitant than their canid counterparts, however, and if they show an interest in the bait will generally directly approach it, sometimes even marking it with their scent before leaving (rubbing, urinating, or even rolling in it in less common instances).

Even deer will check out a bait site:

Though, as herbivores, deer are not interested in bait as a food source, it is in their interest to know who else may be in an area, and so the site behooves inspection.

​Other times, they are just passing through...  

Like deer, elk are crepuscular. Generally, though not always, elk are found grazing at night in large herds (or harems). A ruminant, elk can graze about 20 pounds of vegetation a day! At daybreak or soon after, elk disperse into smaller groups and bed down in shelter (typically forested areas). 

Male elk, or bulls, will often travel solo this time of year. Late summer to early winter is elk breeding season, or rut, and the mature individuals pictured here are likely in pursuit of a harem. 

Other animals who display little caution at sites? 

As mentioned above, bears are well-known for being brazen when it comes to food. More so, they tend to be thoroughly curious. As an apex predator, extreme caution is not a characteristic necessary to their survival, though they seem to take great interest in their surroundings. 

Some smaller animals are just as brazen as a bear...

...while other animals can be troublemakers. In the photos above, a striped skunk of family Mephitidae inspects and disassembles a hair snag belt. 

Weasels are often seen at our sites in winter, and they will approach bait fearlessly.

The long-tailed weasels above, however, are not displaying interest in the bait. This could be because there is plentiful food for them, like mice, voles, and even larger animals like rabbits and chipmunks. Closely related to skunks and in the same family as wolverine (Mustelidae), it is not surprising that these animals have a diverse carnivore diet and display little caution. 

Some other animals tend to always be oblivious to the bait, like these snowshoe hares, though they often tend to perk up a little for the camera: ​

These members of family Leporidae sport large, snow-defying hind legs and have another helpful adaptation: camouflage. The hare on the right appears to still be wearing its darker summer coat, while the hare on the left has changed its seasonal coloration to match the freshly falling snows. Perfectly timed for the season!

Another fearless, though somewhat rare animal detected by our cameras? A herd of camera crew volunteers!

​Whereas cameras can offer rich detail of the wildlife they detect, they can only tell the story of what is directly in front of the lens and can miss the peripheral story of all that goes on around them. Tracking surveys step in to compliment the wildlife camera data, telling us a story of the life upon a landscape. Surveys are conducted by snowshoe on Mt Hood almost every winter weekend with groups of up to 12, which include two Cascadia Wild endorsed and trained Tracking Trip Leaders. The surveys follow 1.5 mile transects (and more if time allows) and document the tracks found along the way, including: track size, gait, track quality, and species identification. A lot can be learned about the land and wildlife by reading these signs. Read more.

One of the most easily distinguishable animal tracks in our forest is the snowshoe hare: 

We've also been seeing quite a few squirrels: 

​Here, each print is actually two prints - both the front and back foot stepping in the same spot. This is called a double register.

And we've even found some mice!

One of the more exciting tracking finds so far has been Pacific marten. The Pacific marten is also one of our target species: their presence is an indicator of healthy upper-elevation forest. 

The trail of the marten can be seen above. Several times it appeared to slow to a walk, pause - perhaps looking around - and often kept to the cover of the small saplings. Marten, another mustelid, are also voracious carnivores and it's possible to imagine it skirting the trees on its meandering path, in search of a vole, deer mouse, or other small animal.

Occasionally, we even get to see wildlife! A common sight are Canada jays. While we do not keep data on these birds, we do like seeing their familiar faces. Like their Corvid cousins - scrub and Stellar jays, Clark's nutcrackers, crows, ravens, and so on - Canada jays are adaptable, have diverse diets, and are generally regarded as highly intelligent, personable, and sneaky. These characteristics lend them and others in family Corvidae the nickname "Camp Robber."

There are few better ways to spend a winter day than strapped into snowshoes documenting the wildlife in our backyard...

...and enjoying the scenery...

...with a great group of trackers:

Thank you all for being a part of Cascadia Wild, this year, in previous years, and in the years to come!

Until next time... 
Happy Solstice! Happy Winter!
Our best wishes to you in the New Year!

This week we've seen some old favorites and made some new friends.

Camera teams went to Government Camp East, Little Zig Zag, and Yellowjacket East. Our tracking trip explored near Salmon River Meadows. ​

It's March which means it's that time of year for foxes! Breeding season is finishing up around now and come April, anywhere from 2 to 10 pups will come into the world in a cozy den, loyally tended to by both of their parents. ​

The tracking trip to Snowbunny found hare, mouse, and multiple bobcat trails and brought back some wonderful photos. ​

We had lots of naughty visitors in our photos this week! Okay... maybe "opportunistic" is a better word. The bait at Alpine made it about two days into the set. ​

before...

...and after!

The bait at Government Camp East made it a bit longer than Alpine, lasting for two weeks. This coyote posed for so many beautiful photos, we suppose we can forgive her. ​

Meadows was not spared... Another thief! And so casual about it, too! ​

Another marten leaving perfect tracks at Meadows. It visited multiple times. 

We had camera checks at Bear Springs Far, Clear Lake, and Government Camp West, plus our intrepid trackers went snow camping near Timberline. Check out what they found, plus hear about a couple upcoming events!

The overnight tracking trip (as well as all the snow in the city!) has us thinking about what we need to do to stay warm  - and gets us thinking of all the different ways the animals in our region are specialized to deal with this winter weather. ​

Coyotes' ability to capitalize on any available resources might be one of their greatest adaptations that serves them through winter. Rodents? Great! Deer? Sounds good! Nuts and berries? Love it! ​

Snowshoe hares have adapted in many ways we are all familiar with, like their extremely large, furry hind feet that keep them up on top of the snow. Additionally, snowshoe hares typically turn white at the beginning of winter. In some areas, however, this change does not occur due to the lack of reliable and consistent snowfall. This is a good thing for these creatures, as their bright white fur would be a dead give-away on a brown, snowless day. ​

 
Lastly, Alpine got picked over by two ravens, but they were kind enough to wait until only a few days before the camera check to steal all the bait!

Hello Cascadia Wild Winter Volunteers,
 
     Another great week of camera trips! Volunteers visited McCubbins #1 and #2, Government Camp East, Hazel Hollow #1 and #2, and Little Zig Zag. ​

A coyote in the distance at Hazel Hollow #2 ​

Little Zig Zag was frequented by a red fox over the past few weeks. This is another interesting example of these animals using high elevation forest areas regularly.  ​