
Many things have changed since January. While it is still quite cold on some days, overall the temperature seems to be increasing slightly, pushing the winter season closer and closer to the thaw. With these increasing temperatures, various species are making themselves known around my spot in Centennial. While I didn’t get to see much wildlife at all, I did get to here constant chatter from multiple bird species high up in the trees while I was visiting my spot. These birds were much more active and vocal than they were last month, likely due to the temperature shift and the seasons coming closer and closer to spring. While there was still a good amount of snow on the forest floor it was nowhere near as thick as it was in January, and the brook has even thawed (pictured above). You can tell that even though there is still constant snow on the ground, the seasons are warming up because the subnivean zone is much thinner than it was last month and the moving water around my spot is no longer frozen solid. Along with the melting of the brook, more active birds, and lighter snow layer, there was no ice covering on any of the trees in Cenntanial, a huge differnce from last month’s visit.
With this light layer of snow comes the opportunity to see many tracks of various wildlife that have recently passed through the area. Even though I didn’t personally see any wildlife during my time in Centennial, I did notice many signs of their presence.

For instance, one of the tracks I noticed was likely a rabbit scurrying along the ground under a suspended log. These tracks were located very close to an exposed root system that seemed to provide a den-like area, dry and protected from the elements, a very likely place for this rabbit to call home during the winter months. If this was, in fact, a rabbit, it likely spends most of its days sleeping and sitting still, conserving body energy and heat. Rabbits prefer to use the darkness to conceal themselves from their common predators which can include coyotes, hawks, and foxes, and therefore do most of their foraging at night time and early morning. When they are out and about they are looking for the scarce winter shrub or berry, but since most of these plant species have died off they are forced to resort to eating the woody part of plant-like bark and twigs during the winter months.

Since I noticed these tracks right near a fallen oak tree, I can pretty much guarantee that the rabbit uses this dead oak tree as shelter and protection from the harsh conditions and nearby predators. Many rabbits interact with various tree species throughout the winter in multiple ways. Whether they are using the trees as a food source and eating their bark or fallen twigs, or using them as shelter from predators, they highly rely on trees to provide food and protection in order to survive during the winter. Another species that rabbits interact with during this time of year in Centennial could be the Eastern coyote. Since these canines have become so comfortable around people and are encroaching more and more into densely populated areas, it is very likely that a coyote could find itself in Centennial, looking for the occasional rabbit to hunt. The cold temperatures makes food for these canines very scares, meaning that they need to make their hunts count. So, if you’re a rabbit in Centennial woods you need to be extra careful whenever you go out to forage because it is very likely that there could be a coyote waiting to gobble you up.

I am fairly certain that this is a domestic dog track and not a coyote track, but either way, this is another example of a species that interacts with the rabbits in Centennial. Whether it is a coyote or one of the many dogs that go on walks with their owners through centennial, it is very clear that rabbits are constantly having to interact with canines and need to always be on guard when out foraging in Centennial.

This is just another example of how there are multiple ways to figure out the various wildlife that have visited an area besides simply spotting them. This shows a hole in a dead tree drilled by a woodpecker, likely looking for small insects and larva living inside.
