I thought I'd try giving our chickens a little dry cat food to boost their protein, as they've been eating a lot of grass while free ranging, and since I've been giving them a lot of green veggies. I bought what I thought was a good cat food -- Purina One Natural Blends Salmon and Brown Rice -- but my chickens want nothing to do with it! Is there a brand/variety that you've found chickens prefer? I thought the one I got was good, as it's main ingredient is fish (something about chickens eating chickens that seems wrong). I don't know why they don't like it? Maybe they actually prefer chicken!