it was not very large but their was a fair bit of hair. i dont think anything could've gotten close to the rabbit, although there is another rabbit in there with him. both the rabbits are lop-eared. could it just be some form of molting?
i came to my rabbit's hutch last night to find a large clump of hair on the floor attatched to what looked like skin, however, on inspection of the rabbit, i can't find anything wrong with it but am still worried as to what it could be.