I'm not sure if everything is okay...I have three ten day old chicks, and ten three day olds. We are using the , and mamas heating pad nest in the brooder and everything has been great. But now, tonight, they are all pressed up against each other in a corner, on the opposite end of the heating pad/nest. The temp in the room is chilly, and the temp insert the heating pad is 88°. I'm not sure if I should be concerned? Do I just let them do what they want until bedtime, and then make sure they go under? Should I maybe turn down the heating pad temp?