I have 3 of these black chickens (I think they are australorps...but they could be Jersey Giants...their feathers have a slight blue/green sheen in the sun). They are about 5-6 weeks old. I'm fairly positive two of them are roosters, I'm just not sure about this 3rd one. Its comb is pretty big, but not as big as the other two. Also, its comb isn't as red... Any ideas??? This is one (above) of the ones I'm pretty sure is a rooster. I only pictured one of the two I'm pretty sure about because they look exactly the same. Here's another picture of the roo This is the one I'm not sure about. The comb is not as big nor as red. But the tail feathers aren't as developed (like on the one pictured above) which makes me lean towards a roo. I'm new to this though so I could be wrong. Here's another picture of the one I'm unsure about. Any ideas?