Call me crazy, but I sit with the chicks each night. Observing the combs, it appears the little brown chick that was the 3 first photos does have the 3 rows, the black and white chick with the salmon color on the back and wings definitely has 3 rows on the comb and the other black and white chick appears to have 3 rows. I have one other chick that is a dark brown and it appears to have 3 rows on the comb also. So, I am guessing of the 9 EE's I got, 4 of them are roosters. I had ordered 6 females and 1 male and the hatchery sent me 9 EE's. The more I think about it, having eggs that would be blue, green or pink would be even better than just having blue eggs. So, I am pretty happy with them being my first chicks.
It appears the Silver-laced Wyandottes are easier to tell if they are roosters or hens. Here again this is my first time to have this breed as chicks. If I am correct, what I think are roosters, their combs are bigger, have turned bright red and I think I can even see and feel spurs on the roosters. So, I am thinking of the 10 females and 1 male I ordered and actually getting 13 Silver-laced Wyandottes, 3 of them are roosters. But, I do have some that the comb looks bigger than some that have the single comb but the comb is a pink color.
I will have to say I am really enjoying these chicks. They all seem curious, I have some that love to be petted and am even lucky enough to have some that will crawl up in my lap and go to sleep while I am petting them.