Peafowl (Peacock refers to male and Peahen refers to female) is the most beautiful member of pheasant family. A Peacock has a long tail that can be spread like a beautiful fan to attract a Peahen who has a short tail. Peafowl are omnivores. They eat both meat and vegetation including fruit, grains, ants, reptiles, small snakes, insects and etc.
There are 3 species of peafowl: blue peafowl (also called Indian peafowl, originally of South Asia), green peafowl (native to Southeast Asia and Southwest China) and Congo peafowl (only found in Congo).
Blue peafowl is mostly known and introduced to all over the world that can be seen in many zoos and parks, is because of the blue feather of the peacock body and the blue
The “blue” only refers to blue male peafowl (peacock).
The female blue peafowl (peahen) has nothing to do with “blue”.
The white peafowl is actually a leucistic blue peacock. Mutation of genes makes the birds’ feathers turn into pale or white.
Unlike the blue peafowl, the sexes of green peafowl are quite similar in appearance. The obvious difference is just that the male bird can spread his tail.
Due to hunting and quality of habitat getting worse in Southeast Asia and China where they inhabit, comparing with blue peafowl that in South Asia, the population of green peafowl reduces very quickly and has been evaluated as Endangered on the IUCN Red List of Threatened Species.
Congo peafowl is only native to Congo area, smaller than common peafowl and quite different with the common peafowl in appearance. Congo peacock doesn’t have a long tail than can spread like a beautiful fan. Their cristas are similar to green peafowl’s. But their shape are more like chicken instead of common peafowl we know well. They are peafowl based on biological definition.
Difference between blue peafowl and green peafowl
The blue peacocks are quite similar with the green peacocks while some green peacocks also have blue feathers. Anyway there are actually many differences between them. The most obvious difference is the shape of crista. A blue peafowl’s crista appears like a fan while a green peafowl’s appears like a cluster.
Here is another comparison picture.