I got two coturnix hens yesterday. They're in a cage in the spare room. They've got food, water and a dust bath. One's quite confident and one is a bit more weary. I've seen them drink a little bit but they don't seem to eat or use the dustbath. If I offer a treat they snatch it. Sometimes they flip out for no reason. I'll be sitting there watching and they will freak and run around the cage. Is this settling in or am I missing something?