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Tyto
''Tyto'' is a genus of owls in the family Tytonidae. Depending on the species and the locality, common names include barn owl, common barn owl, grass owl, sooty owl, masked owl, field owl or simply owl. It is the most widely distributed genus of owls in the world and one of the most widespread of all genuses of birds, living almost everywhere except for polar and desert regions, Asia north of the Himalayas, some Indonesian islands and some Pacific Islands. The genus comprises three widespread continental species and many island species including the extinct island species. The widespread species comprise: western barn owl of Europe, western Asia and Africa, the eastern barn owl of Southeast Asia and Australasia, and the American barn owl of the Americas. However, some taxonomic authorities classify barn owls differently, and unify all continental barn owls in to one species. Further research is needed clarify the taxonomies. There is considerable variation of size and co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tytonidae
The bird family Tytonidae, which includes the barn owls ''Tyto'' and the bay owls ''Phodilus'', is one of the two Family (biology), families of owls, the other being the true owls or typical owls, True owl, Strigidae. They are medium to large owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful Talon (anatomy), talons. They also differ from the Strigidae in structural details relating in particular to the sternum and feet.Bruce, M. D. (1999): Family Tytonidae (Barn-owls). ''In:'' del Hoyo, J.; Elliott, A. & Sargatal, J. (eds): ''Handbook of Birds of the World Volume 5: Barn-owls to Hummingbirds'': 34-75, plates 1-3. Lynx Edicions, Barcelona. The family is wide-ranging, although they are not very tolerant of severe winter cold, so are absent from northern areas of Europe, Asia, and North America; they are also absent from driest desert regions. They live in a wide range of habitats from desert, semi-deserts to forests, and from tem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Barn Owl
The western barn owl (''Tyto alba'') is a species of Tyto, barn owl ''Tyto'' native to Europe, southwestern Asia, and Africa. It was formerly considered a subspecies group together with barn owls native to other parts of the world, but this classification was found to be paraphyletic with respect to some other members of the genus. The plumage on the head and back is a mottled shade of grey or brown; that on the underparts varies from white to brown and is sometimes speckled with dark markings. The facial disc is characteristically large and heart-shaped, with white plumage in most subspecies. This owl does not hoot, but utters an eerie, drawn-out screech. The western barn owl is nocturnal over most of its range, but in Great Britain, it also hunts by day. Barn owls specialise in hunting animals on the ground, and nearly all of their food consists of small mammals, which they locate by sound, their hearing being very acute. The owls usually mate for life unless one of the pair i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyto Alba
The western barn owl (''Tyto alba'') is a species of barn owl ''Tyto'' native to Europe, southwestern Asia, and Africa. It was formerly considered a subspecies group together with barn owls native to other parts of the world, but this classification was found to be paraphyletic with respect to some other members of the genus. The plumage on the head and back is a mottled shade of grey or brown; that on the underparts varies from white to brown and is sometimes speckled with dark markings. The facial disc is characteristically large and heart-shaped, with white plumage in most subspecies. This owl does not hoot, but utters an eerie, drawn-out screech. The western barn owl is nocturnal over most of its range, but in Great Britain, it also hunts by day. Barn owls specialise in hunting animals on the ground, and nearly all of their food consists of small mammals, which they locate by sound, their hearing being very acute. The owls usually mate for life unless one of the pair is kill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Barn Owl
The eastern barn owl (''Tyto javanica'') is usually considered a subspecies group and together with the American barn owl group, the western barn owl group, and sometimes the Andaman masked owl make up the genus ''Tyto''. The cosmopolitan barn owl is recognized by most taxonomic authorities. A few (including the International Ornithologists' Union) separate them into distinct species, as is done here. The eastern barn owl is native to southeastern Asia and Australasia. The eastern barn owl is nocturnal over most of its range, but in some Pacific islands, it also hunts by day. They specialise in hunting animals on the ground, and nearly all of their food consists of small mammals which they locate by sound, their hearing being very acute. They mate for life unless one of the pair is killed, after which a new pair bond may be formed. Breeding takes place at varying times of year according to locality, with a clutch, averaging about four eggs, being laid in a nest in a tree hollow, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Grass Owl
The African grass owl or simply grass owl (''Tyto capensis'') is a species of owl in the barn owl family, Tytonidae. Description The African grass owl resembles the Western barn owl, barn owl and has a heart shaped whitish-cream facial disc, with a narrow yellowish-buff rim which is densely spotted dark. The eyes are brownish-black, and the bill is whitish to pale pink. The entire upperparts from the crown to the lower back and wing-coverts are a uniform sooty blackish-brown, with scattered small white spots and greyish flecks. The primary feathers and secondary feathers are pale brownish-grey with dark bars and yellow bases. The short tail has uniform brown central feathers fading to paler, almost white, outer feathers which show about four dark bars. The underparts vary in colour from whitish to buff marked with dark spots. The legs have whitish feathers which extend to the lower third of the tarsi. The lower leg and feet are slightly bristled and coloured pale yellowish-grey. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Barn Owl
The American barn owl (''Tyto furcata'') is usually considered a subspecies group and together with the western barn owl group, the eastern barn owl group, and sometimes the Andaman masked owl, make up the Tyto, barn owl, cosmopolitan in range. The barn owl is recognized by most taxonomic authorities. A few (including the International Ornithologists' Union) separate them into distinct species, as is done here. The American barn owl is native to North and South America, and has been introduced to Hawaii. The ashy-faced owl (''T. glaucops'') was for some time included in ''T. alba'', and by some authors its populations from the Lesser Antilles still are. Based on Molecular genetics, DNA evidence, König, Weick & Becking (2009) recognised the American barn owl (''T. furcata'') and the Curaçao barn owl (''T. bargei'') as separate species. Description The American barn owl is a medium-sized, pale-coloured owl with long wings and a short, squarish tail. However, the largest-bodied ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barn Owl (Tyto Alba) (W TYTO ALBA R1 C16)
The barn owls, owls in the genus ''Tyto'', are the most widely distributed genus of owls in the world. They are medium-sized owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons. The term may be used to describe: *The whole family Tytonidae, though this also includes the bay owls in the genus ''Phodilus'' **''Tyto'', the largest genus of birds in Tytonidae, and particularly these species in that genus: ***Three species that are sometimes considered to be a single species known as barn owl or common barn owl: ****Western barn owl ''Tyto alba'', from Europe, Africa, and the Middle East ****American barn owl ''Tyto furcata'', from the Americas ****Eastern barn owl ''Tyto javanica'', from southeast Asia and Australasia ***Andaman masked owl ''Tyto deroepstorffi'' endemic to the southern Andaman Islands ***New Caledonian barn owl ''Tyto letocarti'', extinct, from the island of New Caledonia in Melanesia See also *Grass owl, so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andaman Masked Owl
The Andaman masked owl (''Tyto deroepstorffi'') is a barn owl endemic to the southern Andaman Islands archipelago of India, in the Bay of Bengal, Indian Ocean.Bruce, M.D., Christie, D.A., Kirwan, G.M. & Marks, J.S. (2017). Common Barn-owl (''Tyto alba''). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/54929 on 6 September 2017). Regarded by some authors as a subspecies of the common barn owl ('' Tyto alba''), it is recognized by others as a species in its own right. Taxonomy The species was named by Allan Octavian Hume after the collector Frederik Adolph de Roepstorff who shot it at Aberdeen, Andamans. Hume placed it in the genus ''Strix''. Some authors consider this bird to be a subspecies of the barn owl/western barn owl ''(Tyto alba)'', or the eastern barn owl (''Tyto javanica''), but König, in his ''Owls of the World'', recognized it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Facial Disc
In ornithology, the facial disc is the concave collection of feathers on the face of some birds—most notably owls—surrounding the eyes. The concavity of the facial disc forms a circular paraboloid that collects sound waves and directs those waves towards the owl's ears. The feathers making up this disc can be adjusted by the bird to alter the focal length of this sound collector, enabling the bird to focus at different distances and allowing it to locate prey by sound alone under snow, grass, and plant cover. Other bird species, such as harriers, have less prominent facial discs. In harriers, the related term facial ruff refers to feathers around the neck that are raised in response to noise, essentially enlarging the facial disc and improving hearing. The barn owl has the most visually prominent facial disc, measuring about 110 mm (Simmons), while the great grey owl has the largest disc of any bird. Due to shared inner ear anatomy with barn owls, it is theorized tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strix (genus)
''Strix'' is a genus of owls in the True owl, typical owl family (Strigidae), one of the two generally accepted living families of owls, with the other being Tytonidae. Common names are earless owls or wood owls, though they are not the only owls without ear tufts, and "Strix (genus), wood owl" is also used as a more generic name for forest-dwelling owls. These are medium-sized to large, robustly built, powerful owls. They do not have ear tufts and most are highly nocturnal woodland birds. Most prey on small mammals, birds, and reptiles. Most owls in the genus ''Strix'' can be distinguished from other Genus, genera of owls through their hooting Bird vocalization, vocalization and lack of visible ears. The Latin genus name ''Strix'' referred to a Strix (mythology), mythical vampiric owl-monster believed to suck the blood of infants. Although the genus ''Strix'' was established for the earless owls by Carl Linnaeus, Linnaeus in 1758, many applied the term to other owls (namely the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Region
The polar regions, also called the frigid zones or polar zones, of Earth are Earth's polar ice caps, the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles. These high latitudes are dominated by floating sea ice covering much of the Arctic Ocean in the north, and by the Antarctic ice sheet on the continent of Antarctica and the Southern Ocean in the south. Definitions The Arctic has various definitions, including the region north of the Arctic Circle (currently Epoch 2010 at 66°33'44" N), or just the region north of 60° north latitude, or the region from the North Pole south to the timberline. The Antarctic is usually defined simply as south of 60° south latitude, or the continent of Antarctica. The 1959 Antarctic Treaty uses the former definition. The two polar regions are distinguished from the other two climatic and biometric belts of Earth, a tropics belt near the equator, and two middle latitud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
