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Alectroenas
The blue pigeons are a genus, ''Alectroenas'', of birds in the dove and pigeon family Columbidae. They are native to islands in the western Indian Ocean. Taxonomy and evolution The genus ''Alectroenas'' was first described in 1840 by the English zoologist George Robert Gray with the Mauritius blue pigeon (''Alectroenas nitidissimus'') as the type species. The genus name combines the Ancient Greek ''alektruōn'', meaning "domestic cock", and ''oinas'', meaning "pigeon". The ''Alectroenas'' blue pigeons are closely interrelated and occur widely throughout islands in the western Indian Ocean. They are allopatric and can therefore be regarded as a superspecies. There are three extant species: the Madagascar blue pigeon, the Comoros blue pigeon, and the Seychelles blue pigeon. The three Mascarene islands were home to one species each, which are all extinct; the Mauritius blue pigeon, the Rodrigues blue pigeon, and the Réunion blue pigeon. The blue pigeons perhaps colonised the Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mauritius Blue Pigeon
The Mauritius blue pigeon (''Alectroenas nitidissimus'') is an extinct species of blue pigeon formerly endemic to the Mascarene island of Mauritius in the Indian Ocean east of Madagascar. It has two extinct relatives from the Mascarenes and three extant ones from other islands. It is the type species of the genus of blue pigeons, ''Alectroenas''. It had white hackles around the head, neck and breast and blue plumage on the body, and it was red on the tail and the bare parts of the head. These colours were thought similar to those of the Dutch flag, a resemblance reflected in its French common name, ''Pigeon Hollandais''. The juveniles may have been partially green. It was 30 cm (12 in) long and larger and more robust than any other blue pigeon species. It fed on fruits, nuts, and molluscs, and was once widespread in the forests of Mauritius. The bird was first mentioned in the 17th century and was described several times thereafter, but very few accounts describe the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alectroenas
The blue pigeons are a genus, ''Alectroenas'', of birds in the dove and pigeon family Columbidae. They are native to islands in the western Indian Ocean. Taxonomy and evolution The genus ''Alectroenas'' was first described in 1840 by the English zoologist George Robert Gray with the Mauritius blue pigeon (''Alectroenas nitidissimus'') as the type species. The genus name combines the Ancient Greek ''alektruōn'', meaning "domestic cock", and ''oinas'', meaning "pigeon". The ''Alectroenas'' blue pigeons are closely interrelated and occur widely throughout islands in the western Indian Ocean. They are allopatric and can therefore be regarded as a superspecies. There are three extant species: the Madagascar blue pigeon, the Comoros blue pigeon, and the Seychelles blue pigeon. The three Mascarene islands were home to one species each, which are all extinct; the Mauritius blue pigeon, the Rodrigues blue pigeon, and the Réunion blue pigeon. The blue pigeons perhaps colonised the Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madagascar Blue Pigeon
The Madagascar blue pigeon (''Alectroenas madagascariensis'') is a species of bird in the family Columbidae. The species is closely related to the other two extant species of blue pigeon, the Comoros blue pigeon and the Seychelles blue pigeon. It is endemic to northern and eastern Madagascar. Taxonomy In 1760 the French zoologist Mathurin Jacques Brisson included a description of the Madagascar blue pigeon in his six volume ''Ornithologie''. He used the French name ''Le pigeon ramier bleu de Madagascar'' and the Latin ''Palumbus coeruleus madagascariensis''. The two stars (**) at the start of the section indicates that Brisson based his description on the examination of a specimen. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his ''Systema Naturae'' for the twelfth edition, he added 240 species that had b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comoros Blue Pigeon
The Comoros blue pigeon (''Alectroenas sganzini'') is a species of bird in the family Columbidae. It is endemic to the Comoros and the coralline Seychelles. It is rated as a species of near threatened on the International Union for Conservation of Nature Red List of Endangered Species. Description The Comoros blue pigeon measures about in length. The male weighs from , and the female weighs about . It has a silvery gray head, neck, and upper breast. The neck feathers are silvery white in colour, and are very long and deeply partitioned. The beak is greenish or yellowish grey, and has a pale yellow or greenish white tip. It has black lower underparts. The lower part of the breast is shiny violet-blue, and the belly and flanks are more greenish blue in colour. Distribution and habitat The Comoros blue pigeon is endemic to the Comoros and the coralline Seychelles. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodrigues Blue Pigeon
The Rodrigues blue pigeon (''Alectroenas payandeei'') is an extinct species of blue pigeon which was endemic to Rodrigues. It is known only from the holotype tarsometatarsus collected in 2005, associated with remains of a Rodrigues night heron The Rodrigues night heron (''Nycticorax megacephalus'') is an extinct species of heron formerly occurring on the Mascarene island of Rodrigues (island), Rodrigues. Taxonomy It is known from subfossil bones and the 1708 description of François L ... and a Rodrigues rail. A femur described in 1879 but now lost may also have belonged to the species.Hume, J.P. 2011: Systematics, morphology, and ecology of pigeons and doves (Aves: Columbidae) of the Mascarene Islands, with three new species. ''Zootaxa'', 3124: 1-62Preview (paperback) (online edition) It was not specifically mentioned by contemporary writers, and it is therefore unknown when it became extinct. References {{Taxonbar, from=Q15707873 Fauna of Rodrigues Extinct birds of In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbidae
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 feed on seeds, fruits, and plants. The family occurs worldwide, but the greatest variety is in the Indomalayan and Australasian realms. The family contains 344 species divided into 50 genera. Thirteen of the species are extinct. In English, the smaller species tend to be called "doves" and the larger ones "pigeons". However, the distinction is not consistent, and does not exist in most other languages. Historically, the common names for these birds involve a great deal of variation between the terms. The bird most commonly referred to as just "pigeon" is the domestic pigeon, which is common in many cities as the feral pigeon. Doves and pigeons build relatively flimsy nests, often using sticks and other debris, which may be placed on bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptilinopus
The fruit doves, also known as fruit pigeons, are a genus (''Ptilinopus'') of birds in the pigeon and dove family (Columbidae). These colourful, frugivorous doves are found in forests and woodlands in Southeast Asia and Oceania. It is a large genus with over 50 species, some threatened or already extinct. Taxonomy The genus ''Ptilinopus'' was introduced in 1825 by the English naturalist William John Swainson with the rose-crowned fruit dove (''Ptilinopus regina'') as the type species. The genus name combines the Ancient Greek meaning "feather" with meaning "foot". The many species of this genus can be further grouped by geography and by certain shared characteristics. The fruit doves of the Sunda Islands and northern Australia, such as the pink-headed fruit dove and banded fruit dove, have comparatively longer tails than other species, and are notable for their solid colouration on the head, neck and breast, with a black band across the belly. Another grouping can be made of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruit Doves
The fruit doves, also known as fruit pigeons, are a genus (''Ptilinopus'') of birds in the pigeon and dove family (Columbidae). These colourful, frugivorous doves are found in forests and woodlands in Southeast Asia and Oceania. It is a large genus with over 50 species, some threatened or already extinct. Taxonomy The genus ''Ptilinopus'' was introduced in 1825 by the English naturalist William John Swainson with the rose-crowned fruit dove (''Ptilinopus regina'') as the type species. The genus name combines the Ancient Greek meaning "feather" with meaning "foot". The many species of this genus can be further grouped by geography and by certain shared characteristics. The fruit doves of the Sunda Islands and northern Australia, such as the pink-headed fruit dove and banded fruit dove, have comparatively longer tails than other species, and are notable for their solid colouration on the head, neck and breast, with a black band across the belly. Another grouping can be made o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gallicolumba
''Gallicolumba'' is a mid-sized genus of ground-dwelling doves (family Columbidae) which occur in rainforests on the Philippines. Local name 'punay' which is a general term for pigeons and doves. They are not closely related to the American ground doves ( genus ''Columbina'' and related genera). Rather, the present genus is closest to the thick-billed ground pigeon. This genus includes the bleeding-hearts known from the Philippines. Most are named for their vivid-red patch on the breast, which looks startlingly like a bleeding wound in some species and has reminded naturalists of a dagger stab. The diet of doves of this genus consists of fruits and seed. Systematics and extinctions ''Gallicolumba'' might be ranked as a (very small) subfamily, but the available data suggests that they are better considered part of a quite basal radiation of Columbidae which consists of many small and often bizarre lineages (e.g. '' Goura'' and '' Otidiphaps'' which are ecologically convergent to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Caledonia
) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign state , subdivision_name = , established_title = Annexed by France , established_date = 24 September 1853 , established_title2 = Overseas territory , established_date2 = 1946 , established_title3 = Nouméa Accord , established_date3 = 5 May 1998 , official_languages = French , regional_languages = , capital = Nouméa , coordinates = , largest_city = capital , demonym = New Caledonian , government_type = Devolved parliamentary dependency , leader_title1 = President of France , leader_name1 = Emmanuel Macron , leader_title2 = President of the Government , leader_name2 = Louis Mapou , leader_title3 = President of the Congress , leader_name3 = Roch Wamytan , leader_title4 = High Commissioner , leader_name4 = Patrice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducula
''Ducula'' is a genus of the pigeon family Columbidae, collectively known as imperial pigeons. They are large to very large pigeons with a heavy build and medium to long tails. They are arboreal, feed mainly on fruit and are closely related to the other genus of fruit-eating doves, ''Ptilinopus''. Both genera display brightly coloured plumage, predominantly green, often with contrasting under-parts of purple, orange or red. Some ''Ducula'' have prominently swollen ceres. They have large gapes and swallow seeds whole, playing an important role in seed dispersal. Imperial pigeons are found in forests of southern Asia, New Guinea, northern Australia and the Pacific islands. Many species are nomadic, travelling long distances to exploit seasonal fruit sources. Some undertake migrations and all are strong fliers. Because of habitat loss and predation, species of ''Ducula'' are amongst the most threatened of avian species globally. Taxonomy The genus ''Ducula'' was introduced in 183 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hackles
Hackles are the erectile plumage or hair in the neck area of some birds and mammals. In birds, the hackle is the group of feathers found along the back and side of the neck. The hackles of some types of chicken, particularly roosters, are long, fine, and often brightly coloured. These hackles may be used in fly fishing as lures. In mammals, the hackles are the hairs of the neck and back which become erect when the animal is fearful, as part of the fight-or-flight response, or to show dominance over subordinate animals. Raising the hackles causes the animal to appear larger, and acts as a visual warning to other animals. Raised hackles are used by grey wolves as a dominance behavior, by moose preparing to attack, and by cats and striped hyena which are fearful or threatened. The process by which the hair is raised is called piloerection. The contraction of the arrector pili muscle associated with each hair follicle The hair follicle is an organ found in mammalian skin. It r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
