in the absence of a trunk or stone to lean on, a capybara may be an option;
I have observed these two individuals do this twice;
see also
https://www.inaturalist.org/journal/nelson_wisnik/21258-the-friendly-capybara
Caught in a plastic ring :(
Jan 31 2019, # 442 on Explore
Em buraco de choupo
Reeder, D. M., Helgen, K. M., Vodzak, M. E., Lunde, D. P. & Ejotre, I., 2013. A new genus for a rare African vespertilionid bat: Insights from South Sudan. ZooKeys 285: 89-115.
Captured in a single-high ground-level mist net next to a stagnant pool of water on a rocky grasslands plateau. This plateau (elevation ~720 m) is surrounded by secondary thicket forest.
Two long-tail bat (Chalinobus tuberculatus) passes recorded using batbox III D Bat detector set on 40kHz (output recorded with phone microphone). By the bush edge at Pukenui Forest flying over a large artificial pond.
A nest, but for what bird?
Most likely Red-breasted Sapsucker
There are some weeeeiiird squirrels in Ontario.