I have a thermometer in my brooder and the temperature was staying steady around 80 degrees, well last night I go to check and it was up to 95, I filtered the air out and now this morning its at about 70. I am not real concerned with them getting too cold, I've been told 95 is ideal for the first week but I mean, they sent me 7 chicks through the mail with no heat source, so obviously they can do fine on their own. However, I'm sure a heat lamp makes life easier for the birds so they don't have to huddle up. At what point will the temperature pose danger to my baby chicks? I'm afraid of leaving to a football party and having them cook while I'm gone. The chicks are 5 days old.