hi everyone, i just bought my three chicks today, so i am completely new at this. they are 4 weeks old and have some of their feathers. since i brought them home around 3 in the afternoon, they have not been eating. i have them in a box with a few inches of chipped(?) corn cob, a chick feeder and waterer. they've drunk a bit of water, but don't seem to be eating. i'm using purina start & grow. i also have a heat lamp, but it was pretty hot today and one of the chicks was panting, so i turned it off. it's cooled off a bit, so the lamp is on and it is 82 degrees. they have been sleeping most of the day. is it normal for them not to eat for so long? anything i need to do? any advice would be greatly appreciated! thanks!