Help girls or boys???

[Lisa2013]

Hi I am new to this chicken thing, I have 8 Easter eggers that I hatched on April 20 that would make them 10 weeks. None are crowing yet here are a few picture hopefully they are good enough for you all to help me out

 

[Basskids08]

Hmm, I'm thinking that the top pic and hthe last three pics are pullets and the rest are cockerels! Only time will tell for sure