I think this 14-15 week old is a cockerel, am I wrong?

[Fluffy_Butt_Hutt]

Barred rock and ameraucana mix.
My reasons for questioning are:
1st picture) Thick neck with whiter head and long neck feathers unlike sisters. Also has short wings.
2nd & 3rd picture) thick legs, which is more noticeable from a side view but dark, in fact darker than all my other chickens.
4th picture) there is another chicken behind, but I meant to highlight the square tail shape

The Ameraucana makes it possible to have this dark coat and still be a rooster. There is a little speckling of a light orange on the back and the wing tips. Has a small comb and barely any waddles. I'm very confused, I need all the opinions I can get!

 

[redinator]

Looks like a point of lay pullet to me. Are your other birds the same breed? Comparing things like neck thickness and leg thickness between breeds doesn't really help.

I'm still new, so wait or others to weigh in.

 

[Jener8or]

It's definitely a pullet. She's pretty, I like her barring, I wish my BRs looked like her.

 

[The Moonshiner]

I'm voting pullet as well.

 

[Pigeony]

Pullet

 

[BigBlueHen53]

Oooohhh. Wouldn't it be nice to get barring accepted as an Ameraucana color! She's breathtaking, really.

 

[Fluffy_Butt_Hutt]

The thing that make me worry the most are the neck feathers being around an inch further down the neck and pointier. Also, I might be delusional, but some short tail feathers look to start to curl in the bunch. All my chickens are barred rock and some are mixes, mostly with ameraucana. Sisters have rounder neck feathers that end earlier on the neck. This chicken does have the white wing tips which I see are common in BR females, so I really hope this chicken is a female. This chicken also has more black than white in her coat, but my other barred rock ameraucana mix rooster has a similar thing, has more black than white and still has the barring. Has the very similar neck feather shape and speckles of brown on the back and wing. The rooster's sister (same father and mother) has no speckling and a much darker less visible barring than he has. However, back to the neck, I've only heard a little bit about differences in the neck feather shape being able to differentiate males from females. Should I throw away the idea that neck feathers can show signs of sex?