Thanks so much for the response!! I shared this post with the Husband, and because of it, he picked up a couple cans of mackerel at the store! I LOL'd when he showed it to me. We've been having trouble with feather picking, and my internet research had led me to conclude worms were the issue....deworming did seem to solve some other symptoms, but not the picking. This article was a lightbulb moment for me on why anytime I give them assorted kitchen scraps they go like gangbusters after any meat first. They went crazy over the mackerel this afternoon. Fingers crossed they'll grow their fluffy bottom feathers back! I'll definitely be referencing this again as I work to tweak their diet :)