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Cascadia Wildlife Blog

News from the Wolverine Tracking Project and more

wrapping  up the summer season

10/31/2022

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 snow falls on mt. hood

The snow is fresh on Mt. Hood and the animals have been hard at work prepping for winter. Just like our animal friends, we have been busy wrapping up our summer season. We send a huge "Thank you!" to everyone that has volunteered with us this summer! With that, we are very excited to start Winter Tracking Surveys soon. Strap on some snowshoes and join us in looking for animal tracks and sign in the snow, our virtual trainings start this week!
Winter Tracking

wildlife surveys

We will be sharing lots of photos and videos brought back from several of our camera sites, as well as discussing a genetic sample found on a scat survey! We will also be highlighting some interesting behaviors and physical changes that animals will be undergoing with the change of season.

A strong sense of smell

We have had numerous detections of black bear at our camera sites this month. These animals can pick up on scents as far as a mile away! Many animals pass through our sites, so it makes sense that bears come to investigate and sniff around!
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From top to bottom: A bear covered in debris poses with head low to the ground, investigating smells at our site. A different site has a bear smelling a log. An adorable cub rolls around near a large downed tree.

leaving a scent

Our volunteers have also brought back photos and signs of some canid species. These animals are highly social and often travel in groups! When seen at our cameras, however, we typically see them alone or in pairs. Canids also love to let other animals know where they've been! They will often mark roads, trails, and sites with urine or scat, and frequently rub or roll on the ground to leave their scent. This works out well for us, as it makes them easier to study!
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From top to bottom: A coyote urinates near a tree while a second coyote stands facing the camera. The same two coyotes rub and roll around, leaving their scent at the site. A coyote sniffs around at a different location.
In addition to the coyote detections at our camera sites, we had a volunteer that found a scat sample that likely belonged to a gray wolf! Canids like the coyotes above and gray wolves are facultative carnivores, which means that in addition to preferably eating prey animals, they will also eat berries, carrion, and whatever else they can find if necessary. This is sometimes evident in scat samples, as we may find plant matter in addition to things like hair or bone fragments from prey.
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Scat sample that is likely from a gray wolf. The large size, cylindrical shape with tapered ends, and hair are notable for identification.
We have another detection from an animal that is quite known for leaving its mark - the striped skunk! We have recently seen an uptick in detections of these animals, which is a pleasant surprise.
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A striped skunk moves through a camera site, pausing to sniff at the base of a tree.

 secretive felines

Next are some mountain lion and bobcat detections. Unlike the canids we talked about, members of the feline family tend to be more secretive. They are much more likely to mark under logs, rocky overhangs, or other areas that receive less traffic. They may also bury their scat, rather than leaving it on a trail like canids. Despite these differences, we will see felines display similar rubbing and rolling behaviors at our sites!
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From top to bottom: A bobcat perches and stretches on a log at night. A bobcat lays in the center of one of our sites. A mountain lion rubs its face and body near a downed tree. A mountain lion approaches and smells a stump during the daytime, a more unusual sighting!

 Developing winter coats

We also had detections of a few species that will be sporting winter coats that look quite different from what we have seen during the summer! Deer and elk develop thicker winter coats with long guard hairs that are more moisture-resistant. For deer, this coat is notably thicker and grayer than their summer coat. For elk, both males and females develop a two-layered coat that looks like a mane covering their necks.
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From top to bottom: A female deer stands with her back to the camera. A larger buck stands near a camera at night. A male elk visits a site at night as well, thicker hair covering the neck is quite visible.
We also detected a snowshoe hare, who will be developing a white winter coat soon! This will allow the animal to better blend in with the snow that is now on Mt. Hood, providing better camouflage from predators.
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A snowshoe hare hops near a tree, then leaps away.

Stashing food for the winter

Next up are some members of the rodent family! We had many detections of Douglas squirrel, western gray squirrel, and chipmunk. These animals have been very active through fall, storing food to eat while they spend more time in their dens in winter. Douglas squirrels use a method called "larder hoarding," where they will create just a few very large caches of food. In contrast, western gray squirrels use "scatter hoarding," where they will have numerous caches that are smaller in size. Various chipmunk species will use either of these methods.
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From top to bottom: A Douglas squirrel hops through the snow. A western gray squirrel stands quite close to one of our cameras. A chipmunk sits to the left of the camera.
We had one more rodent detection, this time a more unusual species! The northern flying squirrel is active at night, so they are not as commonly seen. Unlike the rodents above, hoarding food behaviors are not well-documented for these animals. Maybe we'll find out how they prepare for winter soon!
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A northern flying squirrel hops throughout the site during the night.

feathered friends

Finally, we have some bird detections to share as well!
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From top to bottom: A Steller's jay sits on a stump. A small flock of turkeys pass through a site.
That's it for this month's blog! Thank you to all of our volunteers for bringing back these photos and genetic samples, and thank you for reading!
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