I bought 3 button quail from my local pet store. She said one was born yesterday and the day before and the day before that. The one that was born that day did not make it, the one that was older was super rambunctious trying to get out of the enclosure all night. Now today the brooder is nice and warm there plenty of space for them to move away from the heat and come back to they have spots to hide. It seems they like to cuddle together with the thermometer I have in there with them they lay right up against it. I notice that the bigger ones tramples the smaller on picks at him pushes him with his beak lays on top of him. Is that normal behavior?