Wing sexing only works on newly hatched chicks and only if the parents were selected for this. Amberlinks are wing sexed and someone shared video of the hatchery doing this. Now, people think that means they can apply the same technique to all chicks. That's not how it works. It's like assuming all red chicks are female and all white chicks are male because that is true of red sexlinks.Do the French cuckoo's not even out like most chickens? And thank you! Appreciate it!