I am having issues with my Silver Laced Wyandottes. I have 6 in a flock of 28 and if someone is getting pecked, it's one of them doing it. I'm going to band their legs so I can tell them apart (5 are pretty much identical) and try to pick out the worst offenders. The others will peck if the see blood, but from what I see it's the Wyandottes starting it. At first I thought it was bordom and then outgrowing their brooder. They're in their big girl coop now and they have plenty of space. It has been hot lately, so maybe they are more stressed, but I woke up today (I've been working nights) to my white giant Winnie with pecked and bleeding tail feathers. So she has to be in chickie hospital while her tormentors run free. It's a little frustrating. Do you think this is a breed thing or a stress issue? I should mention these pullets are 9 weeks old, all from McMurray and raised together from day one. The Wyandottes spent the last week of brooderdom in jail because of this same issue. I thought moving into the coop would shake things up and make them stop. I haven't noticed any feather eating either. But I might not always catch them at it. (12x16 coop, 12x16 covered run, 16x24 uncovered run, 30+ ft roosting space).