I have a mixed group of pullets from McMurray that are all about 5 weeks old. I've got two white crested black polish chicks and a white polish and ALL THREE are getting bullied by the group. The others have been pecking at the crests, pulling feathers out, bruising and making their heads bleed. It's been going on since about 3 weeks old. It seems like the 3 cochins do a lot of the pecking, but everyone else joins in! I separated the 3 polish into a different tub, since they don't peck each other. They all healed, but today I moved them all out into the coop for the first time all together now and ACK! Bloody pecked heads on all three again! I've moved the 3 pecked chicks back inside... but they're getting big! My worry is that the pecking will never stop and I can't keep em inside forever, but I don't want to find pecked-to-death chickens Does anybody have any experience on this? Will the other girls eventually quit being such jerks?