Loading...

Peacock At The Bronx Zoo

21,247 views

Loading...

Loading...

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Apr 22, 2010

http://myworldtravel.weebly.com

The term peafowl can refer to the two species of bird in the genus Pavo of the pheasant family, Phasianidae. The African Congo Peafowl is placed in its own genus Afropavo and is not dealt with here. Peafowl are best known for the male's extravagant tail, which it displays as part of courtship. The male is called a peacock, the female a peahen, although it is common to hear the female also referred to as a "peacock" or "female peacock". The female peafowl is brown or toned grey and brown. The two species are: * Indian Peafowl, Pavo cristatus (Asiatic) * Green Peafowl, Pavo muticus (Asiatic)

The Indian Peafowl is a resident breeder in the Indian subcontinent. The peacock is designated as the national bird of the Republic of India and the provincial bird of the Punjab (Pakistan).

The Green Peafowl breeds from Burma east to Java. The IUCN lists the Green Peafowl as vulnerable to extinction due to hunting and a reduction in extent and quality of habitat.
The male (peacock) Indian Peafowl has iridescent blue-green or green colored plumage. The so-called "tail" of the peacock, also termed the "train," is not the tail quill feathers but highly elongated upper tail coverts. The train feathers have a series of eyes that are best seen when the tail is fanned. Both species have a crest atop the head.

The female (peahen) Indian Peafowl has a mixture of dull green, brown, and grey in her plumage. She lacks the long upper tail coverts of the male but has a crest. The female can also display her plumage to ward off female competition or danger to her young.

The Green Peafowl is different in appearance from the Indian Peafowl. The male has green and gold plumage and has an erect crest. The wings are black with a sheen of blue.

Unlike the Indian Peafowl, the Green Peahen is very similar to the male, only having shorter upper tail coverts and less iridescence. It is very hard to tell a juvenile male from an adult female.

Many of the brilliant colors of the peacock plumage are due to an optical interference phenomenon, Bragg reflection, based on (nearly) periodic nanostructures found in the barbules (fiber-like components) of the feathers.

Different colours correspond to different length scales of the periodic structures. For brown feathers, a mixture of red and blue is required: one colour is created by the periodic structure, and the other is a created by a Fabry-Perot interference peak from reflections off the outermost and innermost boundaries of the periodic structure. White (albino) peafowls are sometimes bred.

Such interference-based structural colour is especially important in producing the peacock's iridescent hues (which shimmer and change with viewing angle), since interference effects depend upon the angle of light, unlike chemical pigments.
The peafowl are forest birds that nest on the ground. The Pavo peafowl are terrestrial feeders but roost in trees.

Both species of Peafowl are believed to be polygamous. However, it has been suggested that "females" entering a male Green Peafowl's territory are really his own juvenile or subadult young (K. B. Woods in litt. 2000) and that Green Peafowl are really monogamous in the wild. The male peacock flares out its feathers when it is trying to get the female's attention. Those who subscribe to this notion cite the similarities between the sexes.

During mating season they will often emit a very loud high pitched cry.

Loading...

Advertisement
When autoplay is enabled, a suggested video will automatically play next.

Up next


to add this to Watch Later

Add to

Loading playlists...