are Turkey and Ostara boys or girls

I went back to check the ages, and you say 4 months, so 16 weeks? on Turkey and Ostra? Really take a good look at Ostra and watch...that is not a lot of comb for nearly 4 months, so there is hope that could be a pullet...the pattern might even out as he/she molts. I've had some barnyards and EE's molt through odd patterns to prove to be even-patterned hens in the end.

As to the last 2...what age are they?

They are mixed breeds of mixed breeds so they don't always follow color pattern of EE's as you state your rooster is Ameraucana/Silkie/Cochin, so the best indication is comb size and color, and age is very important for that.

Usually even pattern will remain female and blocky pattern be roo, across the board, with roos getting red large combs earlier, always outshining the hens, and hens not getting substantial red comb until point of lay.

Assuming about the same age, or maybe 3 months of age, I think the first is pullet and the 2nd may be a roo, depending upon age.

With barnyards, sometimes you have to wait until the lay or crow as the patterns can really change as they develop adult feathers.

LofMc

I was guessing on the ages of Turkey and Ostara, I bought them as day olds when I was pregnant and I can't for the life of me remember how old they were when I had my baby, but its been three months since, I really really hope one is a girl because I wanted a female to put with my big EE . he's really too big for my bantams.

I'm leaning toward both being cockerels, but I'm not 100% sure.

The first pair or the second? The second pair are about two-two 1/2 months old the first are around 4 months

Ostara update, her comb hasn't gotten any bigger or redder. So still thinking girl. I have a Rooster who is a lot younger and he is crowing and trying to dance for her. Her beard is coming in nicely too.