thanks so much that is a ton of help. Ive noticed some of mine are standing taller and chest bumping, Ive had very tough girls do the same fighting for pecking order but the feather length is diffrent. I have also noticed some of the wings came in faster but i didnt know that was reliable for BLRW. Thanks so much for the info.I just looked at my two 1 week old BLRW chicks. I am predicting 1 male and 1 female. The one I think is a male constantly stands "tall". He also has a much wider and bigger comb. The one I think is a female has a really tiny thin comb and is always standing at a slightly couched, forward leaning stance. Their wings are also growing in differently. On my last hatch (not all Wyandotte) I correctly predicted 6 of the 7 chicks by the end of the first week based on stance, feather length, combs and leg thickness.