It's just the black sex-link hens, the rest (buff orphington, barred rock, arucana, and a variety of "mutts") have no problem with the coops. The others in the coops are fine and haven't had any predator problems since we got "the dog". These were goofy birds from the start, so I'm not too surprised. they'd go into the coop to lay their eggs this summer, but they'd live in the trees at night. The only major concern is the drop in egg production!