Easter Egger gender help

[Ilovechickens28]

We have a Easter Egger she is about 3 months old. Her comb and wattles are not has developed as her brothers, but more developed than her sister. All her brothers crow. I am very confused about her. Thanks for your opinions.

this is her

One of her brothers

One of her sisters

 

[The Happster]

Cockerel. Sorry.
Handsome boy though.

 

[Ilovechickens28]

Thanks

 

[TheOddOneOut]

Boy, and a handsome one.

 

[Buffbrahmasforever]

Cockerel

 

[HappyClucker7]

Cockerel.