I have pure speckled Sussex just a hen and her chicks not together yet I am planning to put her in with the RCLH in due time . She is the older and very bossy so I am guessing she will first on the pecking list. I only keep her for her broodiness. A good mother The leghorn is just a experiment right now the rooster is very mean with the hens he rapes them and chases them in a terrible way. He flings at the coop when I walk by. He is in time out right now . If this don't work off with his head. I don't put up with mean roosters