mites?

[curlycue212]

every year my rooster looses his feathers on his back from behind the wings to his tail feathers. i put diatomateceous earth out every time i clean the pen, and none of the other birds ever lose feathers either. any ideas?

 

[Judy]

Mites are a possibility, though so is feather picking. If it is mites, you will need to use an effective product, such as a permethrin or pyrethrin product. Perhaps this will help:

http://edis.ifas.ufl.edu/ig140