I'll weigh in after the fact.
I think your roo is definitely the Wyandotte...that's a fairly fleshy comb for the age and blotchy coloring on the feathers....pullets would be more even patterned and have barely any comb....but I agree it is early yet. But if you hear crowing, I personally would look in that direction. I think the rest are pullets, with jury out on the Silkies, too young to sex them accurately.
As to the "tail-less' bird, simply not having tail feathers yet doesn't indicate they won't come. You need to feel its bum to see if it has a"tail bone." True Araucanas (North American standard) won't have a tail bone (pygostyle) as part of their anatomy, the triangular shape we think of as the "tail" on a roasting chicken, which is what anchors the tail feathers to the bird. Without a pygostyle, no tail feathers can grow. You should be able to feel the little bump at the bum if it is present.
LofMc
I think your roo is definitely the Wyandotte...that's a fairly fleshy comb for the age and blotchy coloring on the feathers....pullets would be more even patterned and have barely any comb....but I agree it is early yet. But if you hear crowing, I personally would look in that direction. I think the rest are pullets, with jury out on the Silkies, too young to sex them accurately.
As to the "tail-less' bird, simply not having tail feathers yet doesn't indicate they won't come. You need to feel its bum to see if it has a"tail bone." True Araucanas (North American standard) won't have a tail bone (pygostyle) as part of their anatomy, the triangular shape we think of as the "tail" on a roasting chicken, which is what anchors the tail feathers to the bird. Without a pygostyle, no tail feathers can grow. You should be able to feel the little bump at the bum if it is present.
LofMc