I have a rooster that went after a hen and her chicks. He killed one chick. Why would he do this? I am new to the chicken world. I inherited 2 roosters and 3 hens when their owner abandoned them. The 5 have since moved to my neighbor's place. She has the hen, 7 chicks(that includes the dead one) and 10 pullets. She said that the rooster just went after the hen and chicks and ran them into a fence, then killed the chick. We are thinking of getting rid of the roosters but they are free-ranging. How do we catch them? Any help would be greatly appreciated. I really don't want to have to shoot the roosters but we can't have them killing the chicks.