Help sexing 8 week old chicks needed

[Nannyteeny]

Hi everyone. I have 2 legbars and 2 Polish. All 8 weeks old. I know the silvery grey legbar is make, because his colours at hatching were very definite, the brownish one was less clear 'she' is smaller, thinner legs, smaller comb and so far no wattkes, but worried may just be a slower developer.
The 2 Polish no idea, but the crazy white one is getting wattkes, although at hatching her head fluff was the shape more like female. All ideas welcome!!!!

 

[TheOddOneOut]

Hmm...the white Polish is male. And I think the pullet is NOT a CCLB.

 

[Nannyteeny]

Thank you. The eggs were from a local city farm, and they only have legbars and polish-what is it that makes you say she isn't, I know nothing about breeds, my two broodies are just crossbreeds hatched at my daughters school!! I really hope that the black polish is a girk, as I can't keep Cockerels in my area. Not bothered if they aren't true breeds.