EE Rooster or Hen

[Chicks n Pipes]

These three hatched a little over a month ago. Their mother was a silver EE and their father was a black Australorp. I first thought just the gray one was a rooster and now I think one of the black ones is to. The two black ones hatched within an hour of each other and the gray one hatched a day after. Sorry about the quality of the pictures they aren't the calmest chicks. Thanks for any ideas. ( The first three pictures are of the gray one. The second three of the smaller black one. And the last three are of the black one that I think might be a rooster.)

 

[Pretty Birds]

The first one looks like a cockerel. Not sure about the other two, it is a bit early to tell.

 

[Brahma Chicken5000]

The first black bird is a pullet, the other 2 birds are cockerels.

 

[drumstick diva]

x2 Brahma Chickens 5000