Hello from the Pacific NW ! I’m on an island in the San Juans in Wa state! I have 5 wonderful chickens: 3 1-yr olds & 2 elders: 1 is 12 and 1 is 17+ (adopted!). I’ve had chickens for 12 years (not the same ones!) and have learned a lot , but still have questions! I’ve dropped into BYC multiple...
My chickens have started aggressively self preening. They’re also looking a bit “shaggy” and one has a bare butt. I checked them about a week ago and didn’t see any. What’s the treatment?