Ameraucana - White Leghorn produce sex links?

[Amer]

Yep! Sexlinks. It sounds like your rooster passed the id+ gene, the sexlinked dermal melanin gene, to his daughters. While daughters need only one copy, sons need too. Whether it can be determined at hatch is beyond me.
Some times chicks with id+ express it from hatch and other times they don’t until a few weeks later. There is more than one allelic mutation of id+ and I don’t know what Ameraucanas have.

 

[Aapomp831]

Are you sure it’s an Ameraucana? Most of them are actually Easter Eggers and I don’t believe you can make a sex link with them since they are already hybrid?
@The Moonshiner

 

[Amer]

Are you sure it’s an Ameraucana? Most of them are actually Easter Eggers and I don’t believe you can make a sex link with them since they are already hybrid?
@The Moonshiner

It might be an Easter Egger, but you can still make a sex link if it has blue or green legs. Sexlinks have to do with being homozygous for a gene, not being purebred.

 

[The Moonshiner]

It has been said that it works and it sounds like it has for you.
I've done similar in the past that did not work though.