Whatever it was it couldn't have been that big, it was small enough to get through a 2"x3" hole, and not strong enough to pull a mature hen all the way back through. A neighbor had ALL his hens killed an he said it was from a weasel. That would fit the description so unless a better theory comes along I'll go with weasel. It hasn't shown up again, so I'm assuming the 'Roo has discouraged it for now.Ooh, what did he fight off?
Nero kicked a coyote in the face and lost half his tail in the process. But haven't seen the coyote since. He practiced his ninja moves on a stray dog yesterday, too. It ran off with its tail between its legs!
...I should really get on installing that fence...
After I build the new coop I plan on rearranging the pen fence so I get more area (the birds will be locked inside the coop while I'm working). I also have a few rolls of 2' wide HC that I am going to install along the bottom edge with part of it buried a few inches down for better predator protection.