What I heard was a very pitiful attempt at a crow...the two who are with her/him are both cockerels and are starting to crow. I know it wasn't the Olive Egger as he has figured his out and while it isn't 100% yet I know when he crows. The other one is that barred rock you sexed for me a while back...I actually saw him attempt to crow. When I looked away is when I heard the pitiful crow and when I looked back she/he was standing on the feeder with its head up in the air...so long story to say I'm not 100% sure it was this one. It's comb looks just like the barred rock to me, just not as red...Here is the barred rocks comb and the other one.Coloring indicates pullet. And the comb isn't very developed yet. Are you sure it was this one? Are you even sure it was a crow?