The Welsummer is a definite pullet. A cockerel could not have that color pattern. The only one that I think that has the potential to be a cockerel is the Austrolorp, but it is not definite.
You should know within a month.
LF, yes, but most hatcheries do not sex bantams. The exception is MPC and you have to pay extra ($5 per chick I think).
I think both are pullets. I would expect a larger, redder comb on the left one if it were male, and the wattles are still relatively tiny as well. Even Leghorn pullets have large combs, and they are quick to mature.
Green eggs mean an Easter Egger. True Ameraucanas only lay blue eggs and only come in certain color varieties. EEs can be any color or pattern, and lay blue, green brown or even pinkish eggs. If one parent was a true Ameraucana then this chick would lay green eggs if it is a pullet. Since one or...
Are any of the males barred? I assume the Orp and Marans are not. If none of them are then the barred chick is a cockerel. Any non-barred, non-white male over a barred female results in black sex links.
The next chick is too young to sex. What color egg did it hatch from? Does she have true...