My newest babies (hatched mother's day) peck on the side of their brooder box. ALL the time! Do they still think they are inside of the shell? or are they just doing it to annoy us? The brooder box is next to our bed so all night long we hear PECK....PECK,PECK.....PECK.......PECKETY PECK PECK. ETA: they have plenty of food and water, and temps ok. Lots of room to move about as well.