90 degrees in September? In Michigan? If your chicken walks around like this, she’s probably not hurt (which was my first thought). She’s just coolin’ her pits. On hot days like these, make sure your animals have plenty of fresh water! We (by that, I mean my kids) check on them 3 times per day. Our free-range chickens have shade whenever they need it. They like to dig holes under the trees & hide in them. For the rabbits, we freeze water bottles & they lay down next to the bottle to keep cool. And yes, sometimes I steal an ice bottle for myself.