Ivermectin given to birds by injection, orally or topically won't treat feather lice, but given orally to horses it will treat biting lice. Not sure how effective it is against mites, 'cause I haven't used it for that. For mites and lice I use a poultry dust with permethrin.
There is a topical that I know works, but it an expensive and you have to get it from a vet - Vectra 3D
-Kathy
There is a topical that I know works, but it an expensive and you have to get it from a vet - Vectra 3D
-Kathy