My wife and I have been taking care of this stray. We usually go outside and call for it and make some noises for him to come out to eat. A few nights back we go out for the same routine. We call and we hear him. Finally, we look up. About 10โ up is this.
Little guy finds some safety in that huge hole beneath him. He tucks right in. Until he poked his head out we had no idea.
Forgive if the picture is a bit dark.
In/on a tree? If they did die they'd fall off so I'd assume essentially never. By a tree? Well, I've never seen any.