The friendly and curious Black-caped Chickadee

I consider these little birds to be friendly and curious. Many birds will fly away if they notice me; these ones, though, always seem more curious. They will approach; they might hop around and fly from branch to branch, but they will stay and study you. I think they want to make friends; maybe they have a good sense that I want to be friendly as well, so anytime I see them, it's as if there is some kind of communication going on between us.