Ameraucanas

Tonka looks like the only boy in that bunch! Congrats! They are nice looking lavenders. Am hoping to ad some lavenders from Blehm lines to my flock next year. As for pink combs it depends on the bloodline i have noticed, some lines both roos and pullets have pink combs early(my whitmore farms blacks are like that) but the roos are like your tonka and have the multiple rows of peas while the hens just have 1 small little row.

Well, I don't know that I'm much help, because I'm pretty new to chickens, but my guess would be girls. This is my 7 1/2 week old Lavender Bantam Amerecauna Roo "Bizzle". He has been pretty obvious from the time we got him, at 5 days old. Oddly... He had a comb from the get-go, and it turned pink very early on, probably about 3 or 4 weeks ago. He is also a BUSY BODY, very social, talkative, and extremely entertaining! We also have a few brahmas, and while all of them are girls, I have noticed that all 3 have different combs. Our buff has the classic Pea comb that she is supposed to, our Dark has a small pointy, single ridge, and our light has a large, longer, pointy ridge (the jury is still out, but coming around to the verdict that she is, in fact, a girl).  I'm not sure that such a wide variation in combs is normal within same-sex, same breed chickens, but, well... I'm not sure what to say about that. They are definitely girls, and Bizzle is definitely a boy. Unfortunately I do not have any other Lav. Amerecaunas to compare him to, but looking at your pictures, they look a lot different in the comb department.  I also don't know if the difference between banties and standard size would be great, as far as sexing them and combs and such... Maybe someone else has a better idea?

Not sure what your chick is but he doesn't look like an ameraucana. Esspecially with that single comb. Single combs pink up and get larger much faster then peacombs in any case.

See, I didn't even know they were supposed to have a Pea comb, I guess looking at your pictures, those certainly are pea combs! .I don't know anything about all the different breeds, and when I bought my guy it was on a whim, I was going to pick out Silkies. But I was told he was a Lavender Bantam Ameraucana--and whatever he is, his parents look alike, and like him. And they all look just like several of the images I have found online of LBAs (though the standard size do seem to have a slightly different look to them) . Could the difference between being standard size, and being Bantam have anything to do with the difference in combs? (And, I don't think it's a single comb persay, it's kinda weird, at the back part it is split in two, almost like a crown, but only for about two points worth, then the rest is single).  I just assumed it was because he was a roo and that was why it didn't look like the others.  Now I'm questioning my brahmas as well! One is definitely by the book, but the other two do not have pea combs, so I dunno...  Hopefully my standard size, Rosie, is a true Ameraucana, I want colorful eggs! At any rate, I"m babbling. I guess I am no help in guessing the sex of your chicks, since apparently my guy is not a "real" Ameraucana!  But I will say they all have very sweet faces--my guy has a slightly devilish look to him... lol

To the OP:  The first one looks like a cockerel and the other 2 look like pullets.

cockrel on left
pullet on right

I think you are right in your estimations.

I was wondering what Lavender Ameraucanas look like...yours are gorgeous!