HELP me WING SEX day old wyandotte chicks please

[Minky]

I have 3 Silver Laced Wyandotte chicks. They've just hatched yesterday. I tried to wing sex them this morning, but seriously - they are so little and its all just fluff when you have eyes over 40.

Here are photos - group shot from above, then two pics of each chick.
first two are chick on right/ next 2 chick on left, last two the middle whiter chick.
Maybe I should wait one more day??? So the wings are easier to see? One is 24 hrs old, the other about 14 hours old, the last about 8 hours old. (one of the dark ones was first) , then the middle (whiter one was born second) then about the other dark one was born last.

Please, if you are a newbie and don't know what you're doing, please dont offer advice. LOL. And yes, I have seen the diagrams on the internet...

 

[chickentrains]

Wyndottes cannot be wing sexed.

 

[LadiesAndJane]

While I can not claim to be an expert, it is my understanding that only chicks produced from a cross between slow feathing and fast feathering breeds can be wing sexed. You will otherwise be right 50% of the time.

 

[Minky]

Wyndottes cannot be wing sexed.

Really? I've read posts from this website stating otherwise.???

 

[LadiesAndJane]

Really? I've read posts from this website stating otherwise.???

I know there is A LOT of contradictory information here on BYC as it is an open forum and anybody can post anything.
Makes it hard to sift through what is correct and incorrect.
The following is from a post from 2017 by @tadkerson who is well versed in genetics (basically any post written by them about genetics is golden IMO).

"Feather Sexing Chicks

Color sexing chicks can be a difficult task and is dependent upon the phenotype of the chick. If a chick does not have the correct down color, then you can not color sex the chick. There is a way of using another sex-linked trait to sex chicks based upon the size of the primary and secondary feathers on the wing of a newly hatched chick.

Feather sexing chicks can be accomplished by crossing males that are homozygous for rapid feather growth or carry two rapid feather growth alleles ( k+/k+) with females that are hemizygous or carry only one slow feather growth allele ( K/_W).

The female parent contributes a dominant gene for slow feather growth (K) to all the male offspring while the female offspring will inherit only one rapid feather growth allele ( k+) from the father. This cross produces males that have slow feather growth (K/k+) and females that have rapid feather growth (k+/_W).

You have to examine the feathers on the wings of the newly hatched chick. Wait until the down dries and examine the wing feathers.

The table below contains some of the birds that can be crossed to produce chicks that can be feather sexed.

Any of the males in the table, can be crossed with any of the females in the table to produce offspring that can be feather sexed. If you purchased your birds from a hatchery, check with the hatchery to see if the hatchery feather sexed the birds you purchased. If your stock was feather sexed, then the chickens can not be used for feather sexing crosses."