Biology
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Just as the habitat preferences of this pigeon differ between the islands, its breeding season seems to also vary. In Cuba, Haiti and the Dominican Republic, breeding occurs between April and July, whilst in Puerto Rico breeding appears to occur all year round. The Puerto Rican population also differs by normally laying a single egg, compared to an average of two eggs on the other islands. It builds fragile stick nests in trees, (including mangroves, pines and hardwoods), or on epiphytic plants, where the eggs are incubated for 13 – 15 days. Fledging occurs after 21 - 23 days (2).
The plain pigeon has a varied diet, consisting of fruits, berries, seeds, buds, leaves and flowers. It sometimes feeds on the ground, but spends the majority of its time feeding in the trees (2).
Conservation
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In 2005, the plain pigeon was down-listed from Vulnerable to Near Threatened, according to the IUCN Red List (1). This is primarily due to a recovery programme implemented in Puerto Rico, after being listed as Endangered on the U.S. Endangered Species Act 1967 (3). A captive breeding programme which started in 1983 resulted in the release of a few birds into the wild in 1993. However, the area of Puerto Rico where most birds occur is still threatened by habitat loss and human disturbance (4), and therefore further conservation measures are still required.
Elsewhere, little conservation action is occurring. The plain pigeon is protected against hunting throughout its range, but this is generally not enforced, and therefore illegal hunting still occurs (6). Surveys to assess the numbers of this species and its distribution are required, (1), as is protection from further habitat destruction and hunting (6).
Description
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This large pigeon is about the size and shape of a domestic pigeon, and appears pale blue-grey at a distance (3). When closer up, it can be identified by a subtle wine-colouring on its wings and breast, and a white margin on the leading-edge of the wing (4). It has a dark grey to black tail and bill, dark red legs and interestingly coloured eyes; the iris is a ring of pale blue, surrounded by a ring of dark blue and then a ring of pale orange. Females are slightly paler than male plain pigeons, and juveniles can be distinguished by their more brown colouring (2).
Habitat
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Found in a variety of habitats, which differ between islands. It is found mainly in lowland forest, mangrove and swampy areas in Cuba, highland pine and broadleaf forest, and occasionally coastal desert and mangroves in the Dominican Republic and Haiti, montane rainforests in Jamaica, and in secondary forest, pasture and farmland in Puerto Rico (1).
Range
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The plain pigeon is found only in the Greater Antilles. Three subspecies of the plain pigeon are recognised; Patagioenas inornata inornata is found on Cuba, Dominican Republic and Haiti, Patagioenas inornata exigua exists only on Jamaica, and Patagioenas inornata wetmorei is restricted to Puerto Rico (5).
Status
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Classified as Near Threatened (NT) on the IUCN Red List 2006 (1), and listed as Endangered on the U.S. Endangered Species Act 1967 (3).
Threats
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The plain pigeon was once abundant and widespread throughout the Greater Antilles, but has since suffered a severe decline in numbers, and populations have become fragmented (4). This has been attributed to logging and the clearance of land for agricultural plantations, which has reduced the amount of suitable habitat available for the plain pigeon (1). Hunting has also been blamed for the decline of the plain pigeon (1). It has a surprisingly unwary nature, and therefore is an easy target for hunters (6). Furthermore, the devastating effects of hurricanes have contributed to the decline of this Caribbean bird (1).
Plain pigeon
provided by wikipedia EN
The plain pigeon (Patagioenas inornata) is a species of bird in the family Columbidae. It is found in the four Greater Antilles: Cuba, Hispaniola (in the Dominican Republic and Haiti), Jamaica, and Puerto Rico. Its natural habitats are forest, woodland, coastal desert, mangrove and swampy areas. It is threatened by habitat loss and illegal hunting.
Description
The plain pigeon is a large-bodied bird (38 cm [15 in]) that superficially resembles the common city pigeon. At a distance it appears pale blue-gray overall. The head, hindneck, breast, and part of the folded wing are colored with a red-wine wash. When folded, the wing shows a white leading edge; in flight, it forms a conspicuous wing bar. Legs and feet are dark red. The female is slightly smaller and duller than the male. Juveniles are browner overall, with pale wing margins and dark eyes.
Taxonomy
The plain pigeon is thought to represent a fairly recent island adaptation of the red-billed pigeon (P. flavirostria) or the Maranon pigeon (P. oenops), found in Central and South America.
Subspecies
Three subspecies of the plain pigeon are recognized:
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P. i. inornata from Cuba and Hispaniola
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P. i. exigua from Jamaica
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P. i. wetmorei from Puerto Rico.
During the 1970s, P. i. wetmorei was on the brink of extinction. A conservation program was introduced to save the species and now it numbers a few thousand individuals.[2]
References
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Plain pigeon: Brief Summary
provided by wikipedia EN
The plain pigeon (Patagioenas inornata) is a species of bird in the family Columbidae. It is found in the four Greater Antilles: Cuba, Hispaniola (in the Dominican Republic and Haiti), Jamaica, and Puerto Rico. Its natural habitats are forest, woodland, coastal desert, mangrove and swampy areas. It is threatened by habitat loss and illegal hunting.
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