I am a real newbie! My husband brought home 2 beautiful little "Easter chicks" tonight. They are 3 weeks old. We have them in a cage in the kitchen under a heat lamp for warmth. I put some shavings on the bottom of the cage and some chick crumbles in a little feed dish. The chicks are pecking at the shavings. Should I remove the shavings? Any and all help is sincerely appreciated. Thanks.