Victoria Crowned Pigeon
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The Victoria crowned pigeon (''Goura victoria'') is a large, bluish-grey
pigeon Columbidae () is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with short necks and short slender bills that in some species feature fleshy ceres. They primarily ...
with elegant blue lace-like crests, maroon breast and red irises. It is part of a genus ( ''Goura'') of four unique, very large, ground-dwelling pigeons native to the
New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; id, Papua, or , historically ) is the world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the wide Torr ...
region. The bird may be easily recognized by the unique white tips on its crests and by its deep 'whooping' sounds made while calling. Its name commemorates the British monarch
Queen Victoria Victoria (Alexandrina Victoria; 24 May 1819 – 22 January 1901) was Queen of the United Kingdom of Great Britain and Ireland from 20 June 1837 until her death in 1901. Her reign of 63 years and 216 days was longer than that of any previo ...
.


Description

The Victoria crowned pigeon is a deep blue-grey colour with a small, black mask. Its feather crest (the signature feature of crowned pigeons other than their size) is conspicuously white-tipped. On the wing coverts is a row of feathers that are a paler blue-gray with maroon tips. These form a distinct wing bar. The chest is a deep purple-maroon color. As in all crowned pigeons,
melanism The term melanism refers to black pigment and is derived from the gr, μελανός. Melanism is the increased development of the dark-colored pigment melanin in the skin or hair. Pseudomelanism, also called abundism, is another variant of ...
has been observed. The other two crowned pigeons are somewhat superficially similar, but only the
western crowned pigeon The western crowned pigeon (''Goura cristata''), also known as the common crowned pigeon or blue crowned pigeon, is a large, blue-grey pigeon with blue lacy crests over the head and dark blue mask feathers around its eyes. Both sexes are almost s ...
overlaps in range with the Victoria species. The Scheepmaker's crowned pigeon does not. In the western species, the crown is more scraggly and hair-like, the chest is a uniform blue-gray and not maroon, and a less distinct wing-bar is present. Both sexes are similar. This species is typically long. Some specimens may exceed a length of and a weight of . It is marginally larger than the two other crowned pigeons on average, at an mean of in adult body mass, thus is considered the largest surviving species of pigeon of Earth. The standard measurements among pigeons on mainland New Guinea are: the wing chord is , the
tail The tail is the section at the rear end of certain kinds of animals’ bodies; in general, the term refers to a distinct, flexible appendage to the torso. It is the part of the body that corresponds roughly to the sacrum and coccyx in mammal ...
is , the
bill Bill(s) may refer to: Common meanings * Banknote, paper cash (especially in the United States) * Bill (law), a proposed law put before a legislature * Invoice, commercial document issued by a seller to a buyer * Bill, a bird or animal's beak Plac ...
is and the unfeathered tarsus is . David Gibbs, Eustace Barnes & John Cox. "A Guide to the Pigeons and Doves of the World". Yale University Press (2001), . Like other crowned pigeons, this species makes a loud clapping sound when it takes flight. The mating calls of this species are also similar to the other two species of crowned pigeons, consisting of a deep ''hoota-hoota-hoota-hoota-hoota'' sound. When defending their territories, these birds make a resounding ''whup-up, whup-up, whup-up'' call. Their contact call is a deep, muffled, and rather human-like ''ummm'' or ''hmmm''. The two subspecies of the Victoria crowned pigeon are ''G. v. beccarii'' found on the mainland of New Guinea and ''G. v. victoria'', the nominate race, found on the islands of
Yapen Yapen (also Japan, Jobi) is an island of Papua, Indonesia. The Yapen Strait separates Yapen and the Biak Islands to the north. It is in Cenderawasih Bay off the north-western coast of the island of New Guinea. To the west is Mios Num Island ...
,
Biak Biak is an island located in Cenderawasih Bay near the northern coast of Papua, an Indonesian province, and is just northwest of New Guinea. Biak is the largest island in its small archipelago, and has many atolls, reefs, and corals. The large ...
and Supiori. The nominate subspecies is markedly smaller, with a wing chord measurement of , with less robust legs and feet and darker overall plumage. The nominate has a sparser crest with black on the wing coverts and right above the tail.


Habitat

The Victoria crowned pigeon is distributed in the
lowland Upland and lowland are conditional descriptions of a plain based on elevation above sea level. In studies of the ecology of freshwater rivers, habitats are classified as upland or lowland. Definitions Upland and lowland are portions of p ...
and swamp forests of northern
New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; id, Papua, or , historically ) is the world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the wide Torr ...
and surrounding islands. It usually occurs on areas that were former alluvial plains, including sago forests. Though typically found at or near sea level, occasionally birds of this species may venture up in the hills to an elevation up to about 3,000 feet. They fly from sea to tree every day.


Behavior

Like other crowned pigeons, the Victoria crowned pigeon is a gregarious species. They usually travel in pairs or small parties as they search for food. They walk with an unhurried gait along the forest floor. Their food typically consists of fallen
fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...
. Birds of this species in captivity are particularly fond of eating
figs The fig is the edible fruit of ''Ficus carica'', a species of small tree in the flowering plant family Moraceae. Native to the Mediterranean and western Asia, it has been cultivated since ancient times and is now widely grown throughout the world ...
.
Seed A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiospe ...
s and
invertebrates Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordat ...
may occasionally supplement the diet. When disturbed, these birds fly straight up into the canopy or a large horizontal branch of a large forest tree. After being disturbed, they may remain on their perch for a considerable time engaging in contact calls and flicking their tails. In the wild, this species tends to be shier than the western crowned pigeon, but can still occasionally be quietly approached. The males regularly engage in aggressive displays to establish dominance. In these interactions, the pigeons puff up their chests and repeatedly raise their wings as if preparing to strike their opponent. They also make short dashes at each other and may actually hit one another, but rarely make contact and can be completely peaceful towards other males outside of the early mating season.


Reproduction

Breeding peaks late in
wet season The wet season (sometimes called the Rainy season) is the time of year when most of a region's average annual rainfall occurs. It is the time of year where the majority of a country's or region's annual precipitation occurs. Generally, the sea ...
and in the
dry season The dry season is a yearly period of low rainfall, especially in the tropics. The weather in the tropics is dominated by the tropical rain belt, which moves from the northern to the southern tropics and back over the course of the year. The te ...
. When the male displays for the female, he lowers his head down, stretches forward, and then rhythmically swings his head up and down while simultaneously wagging his fanned tail. Although the female does most direct brooding, both parents help raise the young. The female usually lays a single white egg in a well-built tree nest of stems, sticks, and palm leaves. In the weeks before she lays the egg, the male brings nesting material to the female. The egg is incubated around 30 days. The young leave the nest when they are still much smaller than their parents but are actively tended to for a total of 13 weeks.


Status

The Victoria crowned pigeon is now the most rarely occurring of the three crowned pigeon species in the wild, although it is the most widely kept species in captivity. Perhaps the most pressing threat to the species is continuing habitat loss due to logging. It now quite uncommon near human habitations because it is heavily hunted around them, particularly in areas where gun possession is prevalent. It can be quite tame and easily shot, though it now seems to be fearful of humans in the wild. Most hunting is for its plumes and meat. Trapping of pigeons to be kept alive for captive collections is now illegal but is still likely to be occurring. The Victoria crowned pigeon is evaluated as
Near Threatened A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify f ...
on the
IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol ...
of Threatened Species. It is listed in Appendix II of
CITES CITES (shorter name for the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a multilateral treaty to protect endangered plants and animals from the threats of interna ...
.


Gallery

File:Victoria Crowned Pigeon Jurong.jpg File:Victoria Crowned Pigeon Goura victoria Head 2200px.jpg File:Victoria Crowned Pigeon closeup.jpg File:Victoria Crowned Pigeon Goura victoria Wings Spread 2236px.jpg File:VictoriaCrownedPigeon.jpg File:Victoria.crowned.pigeon.750pix.jpg, Victoria crowned pigeon at
Bristol Zoo Bristol Zoo was a zoo in the city of Bristol in South West England. The zoo's stated mission was to "maintain and defend” biodiversity through breeding endangered species, conserving threatened species and habitats and promoting a wider unders ...
, Bristol, England File:Victoria Crowned Pigeon CentralPark Zoo.jpg, Victoria crowned pigeon at Central Park Zoo, NYC, New York File:Indonesia 1984 100r o.jpg, Victoria crowned pigeon in 100-rupiah banknote File:Victoria crowned pigeon closeup.JPG File:Victoria Crowned Pigeon 058.jpg File:Victoria Crowned Pigeon (7856589332).jpg File:Victoria Crowned Pigeon (24703160080).jpg


References


External links

* ARKive
images and movies of the Victoria Crowned Pigeon ''(Goura victoria)''


* ttps://web.archive.org/web/20060210022659/http://www.rdb.or.id/detailbird.php?id=66 Red Data Book
Internationaldovesociety.com
{{DEFAULTSORT:pigeon, crowned, Victoria
Victoria crowned pigeon The Victoria crowned pigeon (''Goura victoria'') is a large, bluish-grey pigeon with elegant blue lace-like crests, maroon breast and red irises. It is part of a genus ( ''Goura'') of four unique, very large, ground-dwelling pigeons native to t ...
Victoria crowned pigeon The Victoria crowned pigeon (''Goura victoria'') is a large, bluish-grey pigeon with elegant blue lace-like crests, maroon breast and red irises. It is part of a genus ( ''Goura'') of four unique, very large, ground-dwelling pigeons native to t ...
Victoria crowned pigeon The Victoria crowned pigeon (''Goura victoria'') is a large, bluish-grey pigeon with elegant blue lace-like crests, maroon breast and red irises. It is part of a genus ( ''Goura'') of four unique, very large, ground-dwelling pigeons native to t ...