I'm very disappointmented with my two Silver Lace Wyandottes. They came with the flock, when I got them a few weeks or so back. They have been the most aggressive, even more so than the Barred rock, and she had been at the top of the pecking order. These two go after other birds.. One of them had tried to EAT my duck alive not too long ago. Then, today, the same one one tried to peck my chicks to death. They are maybe 7 weeks old or so.. The chicks, not the Wyandottes. lol Anyway, I don't let the chicks out with the bigger hens usually. I occasionally let them "free range" for short periods while i'm w/them, and while the bigger chickens are still in their run. But, I figured it wouldn't hurt to let them out in a small area, while I clean their cage. That Wyandotte kept fighting to get to them, so she could attack them (pecking/biting). Had to lock her in the pen, just to let the lil ones have some peace. The other big hens weren't out to hurt them. A little peck from one, when the chicks would get too close, that's it. Then, the other Wyandotte started doing the same thing! Is this a Wyandotte trait, or am I just unlucky? lol I may build a very small coop and run for these two girls, if they are going to be so aggressive.