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Psalidoprocne Fuliginosa 1894, Crop
The saw-wings, ''Psalidoprocne'', is a small genus of passerine birds in the swallow family. The common name of this group is derived from the rough outer edge of the outer primary feather on the wing, which is rough due to recurved barbs. The function of this is unknown. The birds are 11–17 cm long and black or black-and-white in colour. The genus has an African distribution and all species can be found foraging over forest and woodland. The last part of their scientific name comes from the eldest daughter of King Pandion of Athens, Procne, who was turned into a swallow after tricking her abusive husband. Species list There are at least five species of saw-wing. The black saw-wing has a large number of subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... and many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Saw-wing
The black saw-wing (''Psalidoprocne pristoptera''), also known as the blue saw-wing or black rough-winged swallow, is a small passerine bird in the swallow family. Distribution and habitat The black rough-winged swallow breeds in open wooded habitats, and has a preference for wetter areas, although some races occur in mountain grassland habitat. It breeds across Africa from eastern Nigeria and Ethiopia south to Angola, northern Zimbabwe and northern Mozambique. The subspecies ''P. p. holomelaena'' breeds down south-eastern Africa from southern Mozambique to the Cape in South Africa. This species is mainly resident, apart from seasonal local or altitudinal movements, but ''P. p. holomelaena'' is migratory, spending the southern winter north of the breeding range. The nominate race ''P. p. pristoptera'' of the mountains of northern Ethiopia moves south after breeding. Description The black rough-winged swallow is a small swallow at 13–15 cm length with a forked tail. Its p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whether ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fanti Saw-wing
The Fanti saw-wing (''Psalidoprocne obscura''), also known as the Fanti rough-winged swallow, is a small passerine bird in the swallow family. The Fanti saw-wing has often described as the most beautiful of the swallows, owing to its uniformly shimmering green plumage. Description This is a small swallow at 17 cm. Its plumage is glossy green. The tail is long and deeply forked. Sexes are similar, but the female has a shorter tail. Juveniles are brown with little gloss, and have short tails. Distribution and habitat The Fanti saw-wing breeds in the lowlands of southern west Africa from Senegal to Cameroon. It is mainly resident, apart from seasonal movements. This bird is found in open country, including light woodland, near water. Fanti saw-wings are graceful flyers and they generally feed on insects, including beetles, while airborne. They are typically seen low over water or grassland. The lined nests are built in a 60 cm burrow in a vertical bank. The clutch is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fanti Saw-wing (Psalidoprocne Obscura) (cropped)
The Fanti saw-wing (''Psalidoprocne obscura''), also known as the Fanti rough-winged swallow, is a small passerine bird in the swallow family. The Fanti saw-wing has often described as the most beautiful of the swallows, owing to its uniformly shimmering green plumage. Description This is a small swallow at 17 cm. Its plumage is glossy green. The tail is long and deeply forked. Sexes are similar, but the female has a shorter tail. Juveniles are brown with little gloss, and have short tails. Distribution and habitat The Fanti saw-wing breeds in the lowlands of southern west Africa from Senegal to Cameroon. It is mainly resident, apart from seasonal movements. This bird is found in open country, including light woodland, near water. Fanti saw-wings are graceful flyers and they generally feed on insects, including beetles, while airborne. They are typically seen low over water or grassland. The lined nests are built in a 60 cm burrow in a vertical bank. The clutch is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Saw-wing 2012 02 04 8942
Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus Age of Enlightenment, and night versus day. Since the Middle Ages, black has been the symbolic color of solemnity and authority, and for this reason it is still commonly worn by judges and magistrates. Black was one of the first colors used by artists in Neolithic cave paintings. It was used in ancient Egypt and Greece as the color of the underworld. In the Roman Empire, it became the color of mourning, and over the centuries it was frequently associated with death, evil, witches, and magic. In the 14th century, it was worn by royalty, clergy, judges, and government officials in much of Europe. It became the color worn by English romantic poets, businessmen an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-headed Saw-wing
The white-headed saw-wing (''Psalidoprocne albiceps''), also known as the white-headed rough-winged swallow is a species of bird in the family Hirundinidae. It is found in Angola, Burundi, Democratic Republic of the Congo, Ethiopia, Kenya, Malawi, Rwanda, South Sudan, Tanzania, Uganda, and Zambia. This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence 30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern by the IUCN. References white-headed saw-wing Birds of Sub-Saharan Africa white-headed saw-wing white-headed saw-wing The white-headed saw-wing (''Psalidoprocne albiceps''), also known as the whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psalidoprocne Albiceps 1894 (cropped)
The saw-wings, ''Psalidoprocne'', is a small genus of passerine birds in the swallow family. The common name of this group is derived from the rough outer edge of the outer primary feather on the wing, which is rough due to recurved barbs. The function of this is unknown. The birds are 11–17 cm long and black or black-and-white in colour. The genus has an African distribution and all species can be found foraging over forest and woodland. The last part of their scientific name comes from the eldest daughter of King Pandion of Athens, Procne, who was turned into a swallow after tricking her abusive husband. Species list There are at least five species of saw-wing. The black saw-wing has a large number of subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... and many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Saw-wing
The mountain saw-wing (''Psalidoprocne fuliginosa''), also known as the mountain rough-winged swallow or the Cameroon Mountain rough-winged swallow is a species of bird in the family Hirundinidae. It is found on Bioko island and adjacent Mt. Cameroon. While it has been reported elsewhere in Central Africa (namely, the Cameroon line of Cameroon and Nigeria), it has never been confirmed.Borrow, N. & Demey, R. Birds of Western Africa. 2nd Ed. Princeton University Press, Princeton, New Jersey, USA. References mountain saw-wing Birds of the Gulf of Guinea Birds of Central Africa mountain saw-wing The mountain saw-wing (''Psalidoprocne fuliginosa''), also known as the mountain rough-winged swallow or the Cameroon Mountain rough-winged swallow is a species of bird in the family Hirundinidae. It is found on Bioko island and adjacent Mt. Ca ... Taxonomy articles created by Polbot {{Hirundinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psalidoprocne Fuliginosa 1894, Crop
The saw-wings, ''Psalidoprocne'', is a small genus of passerine birds in the swallow family. The common name of this group is derived from the rough outer edge of the outer primary feather on the wing, which is rough due to recurved barbs. The function of this is unknown. The birds are 11–17 cm long and black or black-and-white in colour. The genus has an African distribution and all species can be found foraging over forest and woodland. The last part of their scientific name comes from the eldest daughter of King Pandion of Athens, Procne, who was turned into a swallow after tricking her abusive husband. Species list There are at least five species of saw-wing. The black saw-wing has a large number of subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... and many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Square-tailed Saw-wing
The square-tailed saw-wing (''Psalidoprocne nitens''), also known as the square-tailed rough-winged swallow is a species of bird in the family Hirundinidae. It is found in Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Liberia, Nigeria, and Sierra Leone. Subspecies There are currently two recognised subspecies. *''P. n. nitens'', the nominate subspecies, which occurs in Guinea, Sierra Leone, Ivory Coast, Ghana, Togo, Nigeria, Gabon, Congo and Angola. *''P. n. centralis'', which occurs in northeast Democratic Republic of the Congo. References square-tailed saw-wing Birds of Central Africa Birds of West Africa square-tailed saw-wing The square-tailed saw-wing (''Psalidoprocne nitens''), also known as the square-tailed rough-winged swallow is a species of bird in the family Hirundinidae. It is found in Angola, Cameroon, Central African Republic, Republic of the Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psalidoprocne Nitens 1894 (cropped)
The saw-wings, ''Psalidoprocne'', is a small genus of passerine birds in the swallow family. The common name of this group is derived from the rough outer edge of the outer primary feather on the wing, which is rough due to recurved barbs. The function of this is unknown. The birds are 11–17 cm long and black or black-and-white in colour. The genus has an African distribution and all species can be found foraging over forest and woodland. The last part of their scientific name comes from the eldest daughter of King Pandion of Athens, Procne, who was turned into a swallow after tricking her abusive husband. Species list There are at least five species of saw-wing. The black saw-wing has a large number of subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... and many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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