Cascadia Wildlife Blog
News from the Wolverine Tracking Project and more
Our summer season is winding down, but this time of year is when things really start to heat up for us at Cascadia Wild! Like our friends in the forest, we are busy gathering all our resources together to ensure a great winter survey season.
We have several upcoming classes, including classes in wildlife tracking for every skill level - don't miss out on our Pressure Releases class December 7 and 8th! - and classes in ornithology and our Naturalist Training Program - see our full list of offerings here: About Our Classes.
This hope of their return is what started the Wolverine Tracking Project, and though the project has grown to incorporate other wildlife, the hope is still alive today. Join us this winter as we continue our search for wolverine and document other rare carnivores like gray wolf, Sierra Nevada red fox, and Pacific marten. Our Winter Tracking Surveys, done by snowshoe in small groups and led by 1-2 experienced Tracking Leaders, start in December, and training has already begun. Training dates are filling up quickly, so register here soon: Join a Tracking Team. A big thank you to those who have already signed up!
Our Camera Surveys also collect abundant wildlife data and operate year-round. We have just completed our Winter Camera Survey orientations, and we are excited about all the new volunteers that have joined us and to see so many returning faces!
We have set up our first winter cameras, and as of this past weekend, all our summer cameras have either been taken down or reset for winter, when we use different bait and have different installation procedures. It will be a few weeks before we have footage back from the winter sites, but in the meantime, summer footage is still rolling in. We have a lot of summer footage to catch up on, so here it goes!
Perhaps the most exciting news from the past several weeks is the detection of Sierra Nevada red fox!
A Sierra Nevada red fox inspects the camera and smells then rolls in the commercial scent bait at one of our high elevation sites. See the full video here.
Though this site was only up for 5 weeks, we had two separate visits from our target species Vulpes vulpes necator - one of the most rare mammals in North America, and an uncommon sight at our summer cameras! We have been operating under the hypothesis that we see this high-mountain fox at our cameras more frequently in the winter because they are drawn in more by the type of bait we use: in summer months we use commercial, scent bait; in the winter we use an eco-friendly meat bait. However, given this detection, we are now considering that perhaps elevation is key. It's possible that these foxes are only at higher elevations in the summertime, living off the ample mice and golden mantled ground squirrels (see below) on these more barren slopes, following food sources down the mountain as winter sets in. This is something to explore in coming seasons, and testifies to how little we know about this elusive animal.
A golden mantled ground squirrel forages and inspects the camera - hello!
We also saw quite a few rolling coyote as well. Like the fox above, not many canids can resist the urge to roll in some nice, stinky bait. Here are a couple sampling the potpourri of Hiawatha Valley Predator (one of our commercial scent baits):
Coyotes roll in commercial scent bait.
Coyotes can also be stoic. The lean and lanky look of this coyote indicates it could be a juvenile, but with its transitional coat it's hard to tell:
Compare to this coyote, who is a bit ahead of the game with its bushy winter coat:
The red coloration of this coyote is remarkable, and it's suitable camouflage for the pine needles on the ground. Coyotes can be difficult to discern from other canids, like foxes and wolves, especially when they have coloring like this. One giveaway is the tail: coyotes most often have a dark tip on their tail, while red foxes often have a white-tip on their slightly more bushy tail. Though it should be noted that gray foxes, who are rare on our mountain but more common to the south, also have dark-tipped tails, and coyotes can even sometimes have white-tipped tails, so it's best to take in other visual clues to their identification. Another clue: the ears are long and pointed on a coyote, but a fox has more rounded ears (see the photo of Sierra Nevada red fox above for a great ear-comparison). Compared to a wolf, coyotes are smaller, have slender faces with narrower snouts, their legs are more long and thin, and they walk more closely to the ground.
This site detected several instances of coyote, including a couple instances where the coyote was carrying prey!
We also had another instance detecting a lucky animal with its dinner:
This bobcat is carrying what is could be a gray squirrel, not unlike a squirrel seen at the same site just a couple weeks prior. However, with striped skunk also in the area, anything is fair game!
We also detected a bobcat doing something we don't often see: rolling in the bait!
This is a trait much more commonly seen with canids, like the ones above, and is the first time our cameras have caught this from a felid. The reasons behind a cat doing this are likely the same as a dog: to relieve itchy backs, disguise their scent, an/or cover themselves in something that smells so good.
We also caught a few instances of bobcats scent marking trees, like this one:
And we got to see some photos taken in the daytime, really showing off their distinct markings:
Most of our footage of mountain lions is also at night, but we detect them during the day from time to time, and caught some beautiful shots at one of our eastern sites:
We also detected several instances of another of our common forest predators, the black bear:
This bear, not a strict carnivore by any means, is likely foraging in the vegetation. Like most other animals right now, bears are busy gathering their winter stores. Whereas squirrels stash their stores, bears carry their stores with them.
Bears are thoroughly inquisitive, curious animals, and often spend a good deal of time inspecting sites, like this one seen here smelling both our bait area and the camera.
A bear inspects the bait log and the wildlife camera. See the full video here.
One of our summer sites used meat bait, and this was a very popular attractant for the neighborhood bears.
One instance the bear went after the bait, another instance the bear gave up and instead had a good scratch, and a third instance the bear forewent the bait entirely and climbed the tree. Whether the bear climbed the tree to get a better vantage point or was spooked by something in the area, is hard to say. It's possible it could have been spooked by one of the several cattle wandering through these woods:
These cows were also interested in the bait. In the second photo, the lighter cow is holding its mouth open in what is called a Flehmen response - something we haven't seen yet this summer but is common in ungulates like cows, deer, and elk, as well as in felids and bears. This is when an animal curls back its lips and breathes into its mouth, holding the air behind its teeth to better smell an area (read more about Flehmen response here).
The bait was also a strong attractant for a family of deer, the youngest still with their summer spots.
We saw deer at several of our other sites as well, like these two young bucks enjoying some early snow:
Given the antler and overall compact size of these two, and given that their muscle development does not seem mature (compare overall size and especially neck thickness with the buck below), it is likely that these gents are yearlings. Yearlings will also often travel in bachelor groups of two. While there may be additional deer we do not detect outside of the camera's field of view, a group of two would also support this age guess.
For family Cervidae, this is a busy time of year: rut, or mating, season. The soft velvet of buck antlers has been shed, and the hardened antlers are now being put to use.
Generally, the rut for black tailed deer begins in the first week or two of November, though that timing can vary due to a number of factors, including a cooler season, early snow, changes in food resources, or the individual. You can see that the buck above has one antler smaller than the other, which could be due to a growth abnormality or a sign of an early season sparring match with another buck.
For elk, we have passed the peak of rut in Oregon, but it's not uncommon for a second or third rut "wave" to happen around this time of year. Not long after seeing this cow - or female elk - and her calf, we saw the mature bull elk pictured below:
It's not hard to imagine that this bull is covering a lot of territory right now, searching for a mate. If you hear something like this while you're out in the woods, there are elk around! While male elk will bugle year-round, it is especially common during rut.
We hope you all are staying warm and having good luck readying your own winter stores while enjoying the changing of the seasons. Until next time!
Mt Hood from one of our high elevation summer cameras, in early October.
Summer is cruising along! We hope you are getting out there, picking some berries, counting stars, and enjoying the season to the fullest. Volunteers on our camera and scat teams are getting out there and bringing back invaluable footage and genetic samples of our forest wildlife. Thank you to everyone who has contributed!
If you're looking for another excuse to get out to the woods, look no further! We'll be at Bark's Summer Base Camp to lead a Tracking Workshop on Sunday, September 1st - come for the day, a few nights, or the full two weeks of camping, workshops, and forest and beaver habitat surveys! Family friendly and FREE. We hope to see you there.
Keep the Sierra Nevada red fox scat survey in mind as you head out to the mountain trails this summer!
We're creating quite the stockpile of promising Sierra Nevada red fox scat, as well! Not every survey will collect scat, though, and that is as valuable as genetic information - lack of evidence of their presence is data that reinforces the rarity of this animal - and knowing what areas they are using is as helpful as knowing what areas they are not. Once we have enough samples, we send the samples for analyses to our partner at Cascades Carnivore Project (who is also researching the Cascade red fox, a cousin in the alpine areas north of the Columbia River). Depending on the quantity we collect, the whole process can take a year. The more we collect, the more timely we can get the data analyzed and communicated to researchers and management - and the better data set we will have.
Wolf survey: We also recently sent off five wolf scat samples to be analyzed by ODFW, and are looking forward to the news! A recent survey also found two new scat samples.
Depending on habitat connectivity, availability of prey, and other dynamics, a wolf pack can have a hunting territory of 50-1000 miles (larger territories commonly found in arctic and subarctic areas). While we know the White River pack is nearby, we are still learning about their territory, and a wolf from that pack or another could decide to venture out and claim new territory at any time. It's a good idea to keep an eye out for their signs, especially on the eastern side of the mountain - we never know where they may end up!
We've now seen footage from all our sites, and have a lot of photos for you, including some firsts of the season - and a first ever for this survey! As usual, we saw a lot of elk, deer, coyote, black bear, a couple mountain lions, and a couple bobcats. We of course saw a lot of Douglas squirrel, a lot of very busy chipmunks, at least one ground squirrel, and a few handfuls of unidentifiable rodents, but the star rodent this time was the largest member of the family Sciuridae, the yellow-bellied marmot!
This is the first time we have caught one of these giant ground squirrels at our cameras! They tend to live on and build deep burrows in talus slopes or alpine meadows, and, though it's not unheard of, it's a wonder that we would find one in this area, which is high-subalpine. Perhaps this one has recently been displaced or has chosen this sub-alpine forest for its abundant edible mosses, grasses, and wildflowers - favorite snacks of marmots.
These dapper rock chucks are named for their coloring, however, they turn tail and burrow at the slightest onset of cold. One of the longest hibernators in our region, marmots can begin hibernation as early as the end of July/mid August, but usually take the dog days of summer to continue building their winter stores.
The biggest present danger to this marmot is coyotes, but wolverines would also be a formidable foe if they reclaim their historic range.
Speaking of Mustelidae (the weasel family, of which wolverines are a part), we also caught sight of the first weasel of the summer!
This lithe and well-camouflaged animal has a unique, identifiable characteristic that sets it apart from other mammals of its size: a long, black-tipped tail which appropriately lends to its name of 'long-tailed weasel.' We always enjoy finding this voracious rodent-hunter on our cameras.
We also saw our first sooty grouse of the season at the same site (lower left corner).
Like other ground birds, a grouse is always a good sign for our forest carnivores like this bobcat, seemingly hot on its trail.
This other bobcat was very interested in the bait belt itself - but not the bait. Perhaps it was more interested in our human-scent from the camera setup than the canine-scent bait under the log; indeed, one of these two may present more danger than the other.
A fellow feline who rightly fears no animal, hominids included, this mountain lion took a moment of repose at our bait log...
...while another mountain lion was caught on the prowl.
We saw many black bear, like this one with its black and cinnamon coloration.
This bear visited a few times, and it really enjoyed using the camera tree as a scratching post, leaving us with quite a few pictures of the back of its head.
Two cubs of the year were caught at another site, though rarely on-camera at the same time. The mother, though (top background), was never far behind.
You can almost see the grin on this content coyote. This behavior could be fulfilling a purpose as simple as a good back-scratch. Or, considering the presence of deer in the area some nights prior, could be a way for the coyote to cover itself in the scent of its prey.
Meanwhile, another one of our cameras captured this very lucky coyote!
While the coyotes have seemed to move on from this site, for now at least, we did see a lot more hare:
More good news for our forest carnivores, a lot of members of the family Cervidae! Specifically, deer and elk.
The photos of this buck displays its summer velvet wonderfully. The antlers of a mature, well-fed and healthy buck can grow up to 1/4 of an inch a day. For bull elk, antlers can grow almost an inch a day. When velvet is present, the antlers are soft and susceptible to damage, and this is part of the reason why bulls and bucks will tend to stick to a smaller territory, with other males. The velvet sheds when the bone begins to set, about mid- to late-September, just in time for them to roam.
We didn't see too many bull elk this time, but we did see quite a few herds of cows and calves.
We also saw two elk that were tagged and collared...
And were treated to some beautiful photographs of a very curious elk! Hello!
We have one more first of the season to share with you, the raccoon:
If you live in a city, chances are you've seen one of these recently. Though more common to see in urban areas, they are still woodland creatures. Like coyotes and other fauna that easily transition to urban areas, they are highly adaptable to their environment. Their presence as scavengers and hunters is always a good sign, and it's always encouraging to see diversity in the forest.
Thanks for reading. We'll be back with more updates soon!
Our cameras have picked up something a bit uncommon and special to see this summer: juvenile coyotes!
Though very similar to each other, note that the juvenile coyote (left) is much more lean and a bit more gangly than the adult that follows closely behind (right). The juvenile also has the typically much finer coat of first-year coyotes.
We’ve also seen other juvenile coyotes at at least one other site in the forest, taken around the same time:
Again, notice the smooth, light coat of a first-year coyote and the lighter frame. Given that juveniles are not ready to hunt on their own at this point, we imagine that it is looking behind for its partner.
What does this mean for the ecosystem?
While perhaps not quite as exciting as the recent videos of the six new wolf pups of the White River wolf pack or the three new pups of the Lassen wolf pack (definitely worth watching if you haven’t), the presence of coyotes and their seemingly abundant offspring indicates that the underlying ecosystem is healthy. What’s more, it could support the growing wolf packs nearby. However, this may come with some food competition and displacement for the coyotes - a coyote will avoid a wolf for the same reasons a fox will avoid a coyote. Luckily, coyotes are timid yet resourceful scavengers and excellent hunters, and their adaptability enables them to survive in environments that wolves cannot, including suburban and urban areas, and enables them to hunt anytime of day or night, allowing crepuscular wolves to use the same territory during dawn or dusk.
Whether we'll see wolves in this area, only time will tell, but in the meantime, these healthy, reproductive carnivores tell a story of a healthy environment that is capable of supporting diverse life.