Thanks, I had been thinking of building a "cave" using a bed cat bag with hoop to shape the mouth open and a heating pad in the brooder but just hadn't done it yet. Maybe that can be my project for this spring.
Question for those using a heating pad in the brooder. How do you keep it clean in with chicks. Burying it in chips or straw? I thought of encasing it in a plastic bag but don't think that would be good to put in which chicks. That's the reason I'm hesitating using it so far.