I just had a batch of Austrolorp/Crested Cream Legbars hatch. I wing sexed them at a day old and based on the feather patterns(long-short-long-short) I thought I had all pullet. Many of them are doing that sparring/chest bump behavior now at 3 weeks old. Does anyone know if its a problem using the wing sexing technique with either the Austrolorps or the Legbars, or is that behavior often seen in young pullets as well as cockerels?
What breed was the male/female in this cross? If the female was the CL in the cross than the chicks will be sex linked identifiable by a head spot or not. If the cross was the other way around than it is not a sex link cross and you will have to wait to see who is male or female.
I believe wing sexing only works for certain breeds that are bred to maintain that characteristic, I don't believe that is reliable in mixed breeds.
All chicks spar and chest bump, not just males.