Help sexing my Polish

[Gray Farms]

I know they are only 5 weeks old, but there is definitely a clear gender difference between the chicks in these two columns! Which column has which gender do y'all think?
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To my knowledge chick crests have never been linked to sex. But I agree there is a clear difference in these crests. I would highly suggest an experiment. Band them with different colored bands, say black bands on the small crests and white bands on the large bands. And see what sex they end up being.

 

[Chick-N-Fun]

Handsome cockerel. ♥