Im trying to figure out what killed our 3-4 week old chicks. We had 10. 3 missing, 5 found dead and 2 still alive. The ones found dead were still in the coop. One had a small patch of feathers missing on its chest, looked like something bite it, but wasnt very deep... a few had, I think small bite marks and the others, I couldnt find anything...

Whatever it was, it had to have been small. Looked like it might have crawled under the fence and dug into the chicken house. but it was a very small opening.
Rats? Mice? I have no idea. Any suggestions would be nice, Thanks

Whatever it was, it had to have been small. Looked like it might have crawled under the fence and dug into the chicken house. but it was a very small opening.
Rats? Mice? I have no idea. Any suggestions would be nice, Thanks