Sexing bantam Ameraucanaa by wing feathers

[melibelly83]

I have 3 day old bantam ameruacana chicks. I noticed their wing feathers are coming in different and I was reading some articles about wing sexing. Mostly doing it for fun and guessing, but any ideas what these chicks could be? Roo or pullet
There are 6 different chicks. Here are their wings

 

[sourland]

I don't think that Ameraucanas can be wing feather sexed.

 

[ChickNanny13]

2x ^^^ Only certain breeds and limited to a time period

https://www.backyardchickencoops.com.au/blogs/learning-centre/chicken-sexing-in-an-eggshell
https://www.cacklehatchery.com/what-is-feather-sexing-separating-fact-from-myth/