Bird Pellet

This appears to be a pellet of fur, bones, insects, and maybe feathers (I didn't dissect it). Some birds, like owls and some raptors (as well as a few others) will regurgitate these pellets of indigestible parts of their prey. If you look closely you can tell much of what the bird has eaten. I am not sure which species of bird left it behind, but I have always found these to be very interesting. I suspect it is from a smaller species due to the insect parts seen.