Hi! I posted last night and wanted to update with pics. Unfortunately I could only get one decent shot. Chickens are not the most cooperative of models. Anyway, I was given these four 20 week old RIRs from my bro in law. He insists they're all females but one of them has dark green prominent tail feathers (only has one now but did have three) dark green feathers on the neck and is significantly larger than the others. The feet are almost twice the size of the others. But the waddles and crest are small and look female.....?