Is my BSL a pullet or cockerel?

[MatthewandSonFarms]

Hi everyone! First post here and I'm in need of a bit of advice.

We were sold a Black Sex Link pullet about 3 weeks ago. She is now about 11 or 12 weeks old. I'm just noticing that "her" tail feathers are a bit curled at the tip. It seems like her tail may have been that way since we bought her, though at the time I didn't notice the difference.

We also have an Gold Laced Wyandotte, Easter Egger and Australorp that are the same age as our Black Sex Link but their tails don't resemble hers- so now I am wondering if my favorite "pullet" may be a cockerel?

 

[keesmom]

Pullet. Black sex link cockerels are barred.

 

[Gray Farms]

Pullet. Like @keesmom stated. Black Sexlink cockerels are barred.

 

[cluckmecoop7]

Looks like a pullet!
I'm raising Black Sex-Links right now, but I got them from tractor supply co. so I'm wondering if they are really Black Sex-Links. I don't want to hijack the thread or anything, but could I see a picture of your girl when she was about 3 or 4 weeks old, @MatthewandSonFarms? Maybe I could tell for sure! Thanks.