Ok I received my first egg yesterday. I thought it was from my buff orpington who has very a very large comb and waddles. Then this morning when I went to open up the coop I hear crowing, but I couldn't see who was doing it, then when they came out into the run whoever it wasn't didn't do it anymore. I also peaked in the coop this morning and it looks like it might be the sex link that laid the egg. She was nesting where I found the egg yesterday. I have a buff orpington, a black australorp, and a black sex link. They are all a bit over 16 weeks old. I was really hoping to have all females, and maybe one is doing a hen crow, but it sure sounds like the start of a real crow. I am attaching pictures please help. I live in town and want to be a good neighbor, I just don't want to get rid of a chicken if it is a female. Here is the australorp, it is so hard to get a good picture of them. Here is the buff Here is a picture of all three, in this pick the black one with the larger comb is the sex link.