Australorp gender

[Liz B]

So I have four black australorps all 19 weeks old and one of them is less developed but has a different tail so I don't know if it is a rooster or not.

 

[sourland]

Dark picture not gibing me much to go by, but feathering does not indicate that she is a cockerel.

 

[donrae]

pullet.

 

[Liz B]

here's a better picture she's the closest black one