Hoping to get some help sexing my 10 week old chickens. The clutch of chicks were Arucanas, Arucana x Cuckoo Maran and Arucana x Australorp (not that I can tell which are which!) and other than the ones that have started crowing or have the more obvious comb features, I'm having a hard time telling which are hens and which are roosters. Any help would be appreciated 
