I introduced four 4 month old silkies into a pen with one Cockeral and 3 hens that are older, and all day yesterday they got along great no problems. As most know silkies are pretty calm and do well with this. Well I woke up and during the first few hours of the morning sun my cockeral must have attacked 2 of the 4 and killed them. The other two were not touched and he was standing next to them and no problems. I couldn't figure out who was male or female yet as non had grown combs at 4 months and all still were lanky and young, but do youthink the two he killed were young boys? I figured A few were because of sparring and I've never had 100% girls out of a hatch. Well let me know if you agree that he probably attacked the young males and could sense they were males since the young ones wernt crowing or anything. Thanks