Are these Sultan chicks boys or girls?

[Sunnychick]

I have 6 Sultan chicks and just love them. Can anyone help in identifying the sex at 6 wks old. Some have a very large top and others are short. Is that a clue in sexing them?

 

[blue90292]

i have no idea. but the first chick you have pictured looks alot like the hen that i have.

 

[allen wranch]

If a roo, his comb and wattles will start developing at this age. He may also try to crow and let out a pitiful squeak.

Feathersite has some good pictures of what to expect:
http://www.feathersite.com/Poultry/CGP/Sult/BRKSultan.html

 

[Sunnychick]

I haven't heard any crowing yet. Only one is showing some red around it's beek. They are sweet birds...