Please help with gender of my chicks

[nova022]

Hello, my first little flock of chicks are now 6 weeks old I I think one or two may be roos instead of pullets. I am pretty sure he buff orpington, the white rock and the australorp are pullets, but I am not so sure about the wyandotte and the barred rock. I would appreciate it if some one could help. Also I want to get a few more chicks. Would it be better to get them now so they are closer in age or wait until spring. Thanks for any help.

 

[nova022]

Here are a few more pictures if they will help.

 

[ChickMagnet207]

I would say all pullets

 

[nova022]

Thanks for the reply. I really hope you are right. I really want them to all be pullets.

 

[ramirezframing]

I would say all pullets

x2

 

[JakeBremer]

2 Roos.

 

[nova022]

Jake do you think the bar and the wyandotte are roos? They do seem to be getting waddles while the others have not started to yet.