Need help sexing 7 week old bantam cochin

[bycmanda]

I bought my chickens as straight run bantams and I think that Mabel is a Cochin. "She" is seven weeks old today and has started making a long cackling noise that I fear might be the beginning of a crow. My other chickens are silkies so I can't compare the redness of her comb and she does seem to be developing waddles. I was hoping someone with experience with this breed could tell me if my she is actually a he.







Thanks in advance!! Also can anyone verify if she is indeed a Cochin?

 

[mboreham1]

massive comb for 7 weeks if a pullet.....

 

[mamma buttercup]

Mine are the same age and their combs are much smaller, maybe I have girls then!