Fox or coyote or deer carcass?

[gmc2003]

Good possibility. We have feral dogs that have interbred with coyotes around here.

and they're usually a little smaller than coyotes.

 

[DougE]

and they're usually a little smaller than coyotes.

Not always. Depends on the size of the dog the coyote interbred with and which genes are dominant in the offspring and all that good stuff.