You have beautiful chickens...but I have no idea about their sex.
I just wanted to comment on the banding of legs. We put zip ties on a few of our chicks to mark the ones we thought were males...make sure you leave plenty of room for them to grow and be sure to take them off before you run out of space. The ties may still fit okay on the chickens but make sure you can still get a wire cutter in to cut them off when you want them off. All that being said, of course mine were much smaller when we put the zips on them. And they grew really fast. We took the ties off today and I was so scared that we were going to hurt one of them before we got them off. Luckily we managed to get them off without any injuries or harm done.
I just wanted to comment on the banding of legs. We put zip ties on a few of our chicks to mark the ones we thought were males...make sure you leave plenty of room for them to grow and be sure to take them off before you run out of space. The ties may still fit okay on the chickens but make sure you can still get a wire cutter in to cut them off when you want them off. All that being said, of course mine were much smaller when we put the zips on them. And they grew really fast. We took the ties off today and I was so scared that we were going to hurt one of them before we got them off. Luckily we managed to get them off without any injuries or harm done.