Quote: 100% wrong
The answers to your question is that the female duck has the chromosome that determines the offsprings gender. To put it into terms that you might understand from a biology class or something. The female basically has the Y chromosome with an X chromosome and the males have 2 X chromosomes . So ducks are opposite of humans with females deciding the gender of the babies.
The female does not only lay just one gender, like humans there is a 50/50 chance of a boy or a girl being conceived
The green sheen on the top does not determine that if it a boy or a girl, when molted into their juvenil feather both males and females have a bit of green sheen on the top of their head , like a thick stripe thing. . The only way to determine the sex is by voice, Ventsexing ( When a few days old ) , or the sex feather that curls on males.
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