Although.... . ... on closer inspection under brighter light, I do see male characteristics on #3 as well, namely the hackle feathers. Need a better pic of #1 to be more certain on that one.
All cockerels. Likely mixes. The ones with the reddish feathers all have dark eyes, so that eliminates Marans which would be the only commonly encountered breed with that pattern
you can provide clearer pics of you want more definite answers. It is hard to see saddle feathers clearly on all of them, but they are easily seen in one of them.
clearer pics, with plain background, from the side, while they are standing.