Hello! I have a chicken who has a disease, which makes it so she can't hop up onto the roosts with the other chickens. She sleeps on the ground. When the Massachusetts winter comes around (rare lowest temps in the teens F), does she need a heat lamp? Her disease makes her weaker too, so that probably means the cold might effect her easier than it would effect healthy chickens. Thanks!! ~Annie P.S. Come to think of it... Will the other chickens need heat lamps too? I've read a bunch about heat in the winter, and the responses seem to vary a lot. Teens seem pretty chilly.