What are you using?I really don’t like to administer medication on my special hen (Rocks-Anne) but I have to get rid of those sticky fleas that she has again. She doesn’t like her face lubricated. I don’t like bothering her.But it’s done. Yes she went away mad at me!
In the past for wild bird rescues I have use injectable ivermectin. Kills lice and mites immediately. It always shocks me how wild birds can be just loaded with them!!!
I am tempted to dust the swallows nests with lice powder to control any lice they may carry in here to prevent my chickens from getting infested.