I have 4 Ameraucanas, 2 black and 2 blue. They are 19 weeks old now. I am fairly certain that the blacks are pullets, but I am not sure about the blues. I had been thinking that they were also pullets, but they have been sparring a lot in the past couple of weeks, and now I'm unsure. What do you think?
All 4:

Blue 1:

Blue 2:

All 4:
Blue 1:
Blue 2: