How to distinguish between black ameraucana and black Easter egger?

[Floof]

I'm thinking that the ones with the white tummy are my ameraucanas. Can someone that breeds specifically for black ams weigh in? This is only my first hatch with these guys.

 

[Floof]

I went and looked at my sex links being raised by my broody and I debunked my white chest theory... I know she ONLY had her own eggs in her nest so all of hers are sexlinks and her girls have white bellies

 

[Pandang81]

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Other than the obvious cockerel, they all look very similar :/

The 2nd pic on here looks Ameraucana and possibly the 3rd. Which ones in this pic ended up being Ameraucana and were they all black?

 

[Floof]

The 2nd pic on here looks Ameraucana and possibly the 3rd. Which ones in this pic ended up being Ameraucana and were they all black?

Willow legs with white head spot=male sexlink
Black chicks with black legs=female sex links
Grey and black chicks with grey legs and light feet= my ameraucanas

I ended up with mostly boys from that hatch unfortunately!