I am super disappointed to say that the spinosad caused some nasty side affects for the birds I treated. Very similar to fowl pox (the dry kind), but I'm pretty it isn't. I've dealt with flow pox recently, and the symptoms were not as bad as what the poor chicks are dealing with right now. I sprayed specific birds, ones with more of an infestation than the others, and only those are exhibiting the symptoms. At first I thought it was fowl pox, so I gave them some things to boost their immune system, and waited for it to run its course, but it has been about a week and a half now, with no improvement and the the other birds haven't caught it. I could be wrong, and it could be fowl pox, but I'm fairly certain it isn't.
I'll get some photos of the ones with the issue soon.