The only one I thought that looks like a male to me really is the one on the right in the first pic, it has a larger wattle or whatever you call that skin under the head lol, it is larger and more red than the other two.
One weird thing, I know feather color and profile really do not mean much at this age but two of them have almost identical feathering, they are "prettier" than the other who is kinda plain and they have grown faster even though they were hatched the same day. They are all about the same size but the two are heavier built and are marked differently than the other. I guess time will tell if I have males or females, dont really care either way as they are just "hobby pets" to keep around for my son, he likes the chickens but he LOVES the turkeys lol. He is going to be 4 in a couple weeks and he is my little assistant lol, helps me feed and water every day and helps round them up to the coop every night, I suppose if I end up with an ol grouchy tom that might take some fun out of it lol