Yes, Bielefelders are huge feeders. Right now I have Christmas and NYD hatches in same brooder, and their difference in size is amazing!I'm raising my first Biels (2 cockerels, 6 pullets). These are the largest breed I have raised, but I'm astonished at their growth rate. They are increasing 60-85% every single week. Is this in line with those of you who have raised multiple chicks?