How long does everyone normally keep their chicks and ducklings inside & in the brooder? I have chicks and muscovy ducklings in the brooder. I put them outside today in a small rabbit run since it was so warm. i didnt get home til after it was dark ( i hurried!) but they seemed to be okay, all huddled together, but i could tell they wanted their warm light back. the ducklings are almost 2 weeks old and the chicks are almost 3 weeks old.