Hello, I am new to this forum and am seeking input from those with more experience. Thank you in advance. Below are pics of our baby chicks who were brooded by a Black Australorp for 2 weeks and fathered by a RIR who had more black/green sheen feathers than I expected. They are now approx. 4 weeks old. All have combs except for one. The sing;e one who does not have a comb is the only one with a long tail and almost fully feathered with the black/green sheen feathers. This one is also the most stand offish. All eat out of my hand right away but this one. This one has to warm up to me a bit first. Three of the other ones seem to have reddish black fuzz on their heads in my opionion. Are they roos? And are they all BA's just a potential of a few roos? Thank you! Pic 1 One with the reddish (to me) head is in the front. Pic 2 Pic 3 Pic 4 Pic 5 Pic 6 The red head and one with no comb are in the top left corner.. Pic 7 The only one with a long tail is in the front Pic 8 Thanks again everyone!