I have 3 white peachicks right now I am trying to tell the sex of. Whites are the hardest to tell the sex of since they won't show it in color. Mainly a peacock will get spurs a lot sooner when a peahen might start getting very small ones at two. Another way to tell is a white peacock will get like wispy tail feathers after a while which is the train. That might take maybe around a year to show up? Anyways with whites it can be harder to determine the sex. My three white peachicks are hard to tell the sex of. The biggest one I think is a male, then the one I thought was female is starting to look big, and the one I am unsure about is starting to look small with small feet so maybe it is a female and not a male like I was thinking...It is hard to tell now so I will have to wait for them to get bigger. Of course you can't say it is a male if it displays ether because both sexes do that.