Yesterday afternoon, my girls were enjoying the beautiful day underneath the coop in their fully enclosed run. I was washing dishes, and I looked out the window and saw this nasty rodent jumping at the wire harassing my chickens. While I was wiping my hands to run out there and show it who is boss, I see my lab Maizy b-line it towards the coop barking and picked up the little critter and threw it in the air. I figured the thing would've ran off but no, it fought back and started jumping up biting at my dog! I went outside with my .22 and the animal was making a hissing noise. I fired a warning shot and then it played dead- Ive NEVER seen anything like that before. I told Maizy to "leave it" and we took a few steps back. Then the critter got up and ran into the woods. Then Maizy walked over to the coop and started sniffing the wire and checked on her girls. I think my dog thinks she's a rooster? She stayed outside until it got dark and guarded her coop and her girls. Hopefully I never see that thing again- I still don't know what it is!