What should I do?! My 4 week old Dom chicks have been in our coop outside in their "growup brooder" that my hubby built them for about a week now with our heat lamp on at night from about 6pm to around 10-11am. (I live in south FL so it's pretty warm here.) But tonight it's supposed to hit 35-37 & my over head heat lamp just blew! Please help. Oh & here is a pic of there brooder pen... Now we did put a piece of wood over 1/2 of the top to block from drafts & the windows to the coop are closed...