Im confused, the tunnel you found and photgraphed was a small hole. The entry hole from the roof was also a small hole.
Why are we thinking it ia a racoon, opossum, fox or coyote?
Also the body of the bantam rooster is gone. How did he be removed by these 2 entry holes less than 2 inches across?
Is the body possibly still there stashed under something inside the coop run area?
A weasel or rat may somtimes stash a carcass to come back and feast on later.
Why are we thinking it ia a racoon, opossum, fox or coyote?
Also the body of the bantam rooster is gone. How did he be removed by these 2 entry holes less than 2 inches across?
Is the body possibly still there stashed under something inside the coop run area?
A weasel or rat may somtimes stash a carcass to come back and feast on later.

My best guess was though the top but, I've noticed one particular square ( 4in×2in ) that was buried has been dug through to the inside.
I don't know if it squeezed in though that welded wire (it was widened) or went through the top. No feathers where in the coop or around either breach. 