I've heard anecdotal reports of squirrels bringing up gifts to a person's house after that person left out food for them. Sounds bizzare and unbelievable, until I actually saw some kind of a nut right on the welcome mat in front of the door. I moved it and saw that it was eaten (shell fragments) a couple days later, telling me that it was actually a good nut.
This makes me ask - is this just a coincidence, or do some animals, like squirrels indeed offer gifts or tribute to humans?
I'm aware that cats frequently bring killed animals to human doorstep:
By leaving a dead animal on the back porch, your cat is acting out its natural role as mother and teacher. You, her loving owner, represent her surrogate family. And frankly, she knows you would never have been able to catch that delicious mouse on your own.
However, for squirrels there's no domesticated relationship, humans are not a part of their family. Why would this behavior take place?