Hatcheries don't make that mistake, you can rest assured yours are all pullets. Second generation means a person buys a flock of sexlinks (say, Golden Comet) from a hatchery and then sells the offspring as Golden Comets. They either don't understand how it works or don't care that they are misleading people.
The Wyandotte looks like a cockerel, the rest look like pullets.
There are only certain colors recognized as Ameraucanas. Chocolate isn't one of them but it's a project color. To add confusion, EEs can be solid colors. But, by definition, a breed will breed true. EEs make themselves obvious quickly when you breed them but you can't tell this by looking at a chick. You probably can tell if you visit the pens (you'll see them grouped by color) but that's still not 100%. It's easier to just say that if you get it at a feed store, it's almost certainly an EE.
Thank you!
Thank you for that helpful video!!!
You are welcome!
