Things You'll Need
Instructions
Hold the chicks in your left hand. Turn the chicks over so their bellies are exposed. Look at the chick's vent below the tail. This is the area where future sex organs will develop in the peachick. If the vent has a small protrusion or bump, the peachick is male. If the vent is a smooth area, the peachick is female.
Allow the peachicks to grow for two months. Male peacocks will have longer legs than the females. If you measure the legs at approximately two months of age, the males should have slightly longer legs. You can then separate the hens from the cocks with some accuracy.
Wait a few more months for primary feathers to start to develop. If you have the standard blue and brown peafowl, you should be able to determine the difference in sexes between nine months and one year. The males will develop dark, chocolate brown primary feathers. The female will develop more muted brown, grayish primary feathers.
Listen and watch the chicks as they develop. The male chicks may show higher signs of aggression.