Having a hard time with knowing difference between male and female for wing sexing.

[TheOddOneOut]

Generally…
WTBs cannot be feather sexed, as they are multigenerational mutts. Whatever you read was wrong.

If the breeder claimed their chicks could be wing sexed, I’d be skeptical. But maybe.

 

[NatJ]

I am aware of that. These are whiting true blues and from what I read these can be feather sexed

Where did you read that?

If the breeder told you that these particular chicks can be sexed by the feathers in their wings, the breeder might be right-- they may have set up appropriate matings for this generation. But if any souce told you that ALL chickens of this breed can be sexed by their wing feathers, that source is WRONG.

To have feather-sexable chicks, they must come from a cross: fast-feathering father, slow-feathering mother. The parents can be from the same breed, but they must have the correct feathering speed. And if you take the chicks from that pairing (the chicks that can be feather-sexed), and breed them you can NOT sex the chicks in the next generation.

So unless the breeder made the right cross in THIS generation, you will NOT be able to sex these chicks by their wing feathers.

 

[Egghead_Jr]

Whether or not these particular chicks can be feather sexed at hatch is somewhat irrelevant. The OP is looking for information based on the photos posted.

Going solely on the photos and assumption they can be wing sexed at hatch then all show pullet to me. The difference is female primary wing feathers will be longer than the secondary. Male chick wing feathers will be equal, as they are slower to grow.

Going beyond feather sexing at hatch. Which is something I never bothered to do as I think it more accurate just to look at legs and stance. The females of all breeds I've owned have had wing feathers before the cockerels. Not that I keep a time table but somewhere, maybe at two-ish weeks, the pullets will have wing feathers and the start of tails while the cockerels will still have mostly down.

When you hatch your own for as long as I have or purchase straight run the differences between the sexes are easy to see. I'm 90% accurate on leg size at hatch. We pull the chicks as they hatch and I'll call the sex as I'm walking to the brooder. Have a tally by end of hatch and as they grow in wing feathers and looking at legs and stance later will tally them up again to compare. It's usually the same numbers and sometimes off by one or two in a hatch of 25 or more. That would be a top pullet with big legs or runty cockerel difference or I'm still on the fence with those birds and confirm what they are as combs redden around 8 to 10 weeks. In a nutshell, with some experience with straight run birds, you'll be 90% accurate at hatch, more than 95% accurate by three weeks and 99% by week 10. In recent years I remember one runty, late blooming cockerel that started growing saddle feathers and red comb at 19 weeks of age. It's rare to be surprised like that.