Our week old RIR chicks are flying to the top of their feeder, and then hop to the edge of their brooder...a large rubbermaid bin. Now what?????? Screen the top???? Stinkers! (Cute stinkers, though.....I'm really kind of proud.....) I just want to keep them safe. I don't want to come home to missing chicks and hiccuping beagles with feathers floating around!