I am a first time chickie mom and got my 3 babies today a few hours ago. I agree that the plastic tub I have is likely not large enough at 18x24. It's one of those Walmart storage tubs.
Anywhoo, I have a Barred Rock, a Buff Orpington and a Delaware - all 3 weeks old. The Buff Orpington is pecking the crap out of the Delaware and she has to keep her face kind of hidden in the bedding to avoid the face pecking. The BO just proceeds to peck her but and tail feathers. She even had a feather on her beak! The only time she stops is when I turn the heat lamp off. She doesn't peck the Barred Rock. Is this normal? Do they try to establish pecking order this young?
Another thing that crossed my mind for the reason: When I got them they were in two different brooders. The Delaware was in an entirely different brooder than the Buff and Barred, who were in the same brooder. However, the Barred doesn't peck on the Delaware at all. Could this be the cause? Should I separate the Buff from the other two?