I once found a rabbit nest in my backyard, where we had 5 dogs at the time. The nest was located in a "doughnut" of pine needles around the base of a tree. I only knew the nest was there because I saw the mother go to it one evening; when I looked later, I wouldn't have known it was there if I...
Rabbit mothers only nurse their young at dawn and dusk, they avoid the nest area during the rest of the day/night. There is a good chance that the nest hadn't been abandoned, just poorly sited. As fuzzy as he is, I'd estimate a few days old; newborn rabbits are pretty much hairless. That he is a...