Black Australorp, 1 year old lost all breast feathers, wont grow back

[tom's chickens]

I have 2 Australorps that lost all their feathers from their but to their breast. This has been this way for over 2 mounths. Feathers also gone around tail. They are in a mixed flock the other hens seem fine. Their breast is completly smoth, light pink. Can find no sign of bugs. Thought it was molting starting but now am wondering. I love some advice. thanks. Tom

 

[paddock36]

I purchased a hen that was missing feathers around her vent. As soon as I got her home I put DE on her and the feathers grew back. Maybe that will help you too. I'd give them all a good dusting.