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A peacock in flight: Zahavi argued that the long train would be a handicap. Furthermore, peafowl and their sexual characteristics have been used in the discussion of the causes for sexual traits. Amotz Zahavi used the excessive tail plumes of male peafowls as evidence for his "handicap principle". [18]
The Indian peafowl (Pavo cristatus), also known as the common peafowl or blue peafowl, is a peafowl species native to the Indian subcontinent. While it originated in ...
Pavo bravardi (Bravard's peafowl) (Early – Late Pliocene) – Gallus moldovicus, sometimes misspelt moldavicus, may be a junior synonym [5]; Gallus aesculapii, a Late Miocene – Early Pliocene "junglefowl" of Greece, may also have been a peafowl [5]
1781 painting by Maruyama Okyo Adult female head and upper neck Male profile. The green peafowl is a large bird in terms of overall size. The male is 1.8–3 m (5 ft 11 in – 9 ft 10 in) in total length, including its train, which measures 1.4–1.6 m (4 ft 7 in – 5 ft 3 in); the adult female is around half the total length of the breeding male at 1–1.1 m (3 ft 3 in – 3 ft 7 in) in length.
Afropavo Chapin, 1936 (African peafowl) Pavo Linnaeus, 1758 (Asiatic peafowl) Polyplectron Temminck, 1807 (peacock-pheasants) Galloperdix Blyth, 1845 (Indian spurfowls) Tropicoperdix Blyth, 1859 (chestnut-necklaced and green-legged partridges) Haematortyx Sharpe, 1879 (crimson-headed partridge) Tribe Gallini. Bambusicola Gould, 1863 (bamboo ...
The Congo peafowl has physical characteristics of both the peafowl and the guineafowl, which may indicate that the species is a link between the two families. [4]
Galliformes / ˌ ɡ æ l ɪ ˈ f ɔːr m iː z / is an order of heavy-bodied ground-feeding birds that includes turkeys, chickens, quail, and other landfowl.Gallinaceous birds, as they are called, are important in their ecosystems as seed dispersers and predators, and are often reared by humans for their meat and eggs, or hunted as game birds.
In these cases, the male and female will be continuously assessing each other based on sexual characteristics. In the blue-footed booby , the females tend to choose males with brighter blue feet, because birds with brighter feet are younger, and thus have greater fertility and ability to provide paternal care. [ 3 ]