Strix owls Temporal range: Early Miocene to recent | |
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Great grey owl, Strix nebulosa | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Strigiformes |
Family: | Strigidae |
Genus: | Strix Linnaeus, 1758 |
Type species | |
Strix stridula [1] = Strix aluco Linnaeus, 1758 | |
Species | |
See text. | |
Synonyms [2] | |
CiccabaWagler, 1832 Contents |
Strix is a genus of owls in the typical owl family (Strigidae), one of the two generally accepted living families of owls, with the other being the barn-owl (Tytonidae). Common names are earless owls or wood owls, though they are not the only owls without ear tufts, and "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 genera of owls through their hooting vocalization and lack of visible ears.
The Latin genus name Strix referred to a mythical vampiric owl-monster believed to suck the blood of infants. [3] Although the genus Strix was established for the earless owls by Linnaeus in 1758, many applied the term to other owls (namely the Tyto ) until the late 19th century. [4] This genus is closely related to the extinct Ornimegalonyx.
The genus Strix was introduced by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae . [5] The type species is the tawny owl. [6] The genus name is a Latin word meaning "owl". [7]
Some Neotropical species were formerly classified in a separate genus, Ciccaba, which was eventually merged based on the placement of its type species, Strix huhula . [8]
The genus contains 22 species: [9]
The genus Strix is well represented in the fossil record. [4] Being a fairly generic type of strigid owl, they were probably the first truly modern Strigidae to evolve. However, whether several of the species usually placed in this genus indeed belong here is uncertain.
Generally accepted in Strix are:
"Strix" wintershofensis (Early/Middle Miocene of Wintershof West, Germany) and "Strix" edwardsi (Middle Miocene of Grive-Saint-Alban, France), while being strigid owls, have not at present been reliably identified to genus; they might also belong into the European Ninox-like group.[ citation needed ]
"Strix" ignota (Middle Miocene of Sansan, France) is sometimes erroneously considered a nomen nudum , but this assumption is based on what appears to be a lapsus or misprint in a 1912 source. [10] It may well belong into the present genus, but this requires confirmation. [4]
"Strix" perpasta (Late Miocene – Early Pliocene of Gargano Peninsula, Italy) does not appear to belong into this genus either. [11] It is sometimes considered a junior synonym of a brown fish-owl paleosubspecies. [4]
UMMP V31030, a coracoid from Late Pliocene Rexroad Formation deposits of Kansas (USA), cannot be conclusively assigned to either the present genus or Bubo . [12]
Extinct forms formerly in Strix:
Owls are birds from the order Strigiformes, which includes over 200 species of mostly solitary and nocturnal birds of prey typified by an upright stance, a large, broad head, binocular vision, binaural hearing, sharp talons, and feathers adapted for silent flight. Exceptions include the diurnal northern hawk-owl and the gregarious burrowing owl.
Falcons are birds of prey in the genus Falco, which includes about 40 species. Some small species of falcons with long, narrow wings are called hobbies, and some that hover while hunting are called kestrels. Falcons are widely distributed on all continents of the world except Antarctica, though closely related raptors did occur there in the Eocene.
The true owls or typical owls are one of the two generally accepted families of owls, the other being the barn owls (Tytonidae). This large family comprises 230 living or recently extinct species in 24 genera. The typical owls have a cosmopolitan distribution and are found on every continent except Antarctica.
Barn-owls are one of the two families of owls, the other being the true owls or typical owls, Strigidae. They are medium to large owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons. They also differ from the Strigidae in structural details relating in particular to the sternum and feet.
The American horned owls and the Old World eagle-owls make up the genus Bubo, at least as traditionally described. The genus name Bubo is Latin for owl.
Larus is a large genus of gulls with worldwide distribution.
Tringa is a genus of waders, containing the shanks and tattlers. The genus name Tringa is the Neo-Latin name given to the green sandpiper by the Italian naturalist Ulisse Aldrovandi in 1599. They are mainly freshwater birds, often with brightly coloured legs as reflected in the English names of six species, as well as the specific names of two of these and the green sandpiper. They are typically associated with northern hemisphere temperate regions for breeding. Some of this group—notably the green sandpiper—nest in trees, using the old nests of other birds, usually thrushes.
The Eurasian scops owl, also known as the European scops owl, common scops owl or just scops owl, is a small owl in the typical owl family Strigidae. Its breeding range extends from southern Europe eastwards to southern Siberia and the western Himalayas. It is migratory, wintering in Africa south of the Sahara.
The bird genus Columba comprises a genus of medium to large pigeons. The terms "dove" and "pigeon" are used indiscriminately for smaller and larger Columbidae, respectively. Columba species are mostly termed "pigeons", and in many cases "wood pigeons", but some, are termed "doves". The rock dove has given rise to the majority of domesticated pigeon breeds, such as the racing pigeon and the fantail pigeon, some of which have become feral. Meanwhile, "wood pigeon" by itself usually means the common wood pigeon.
Anas is a genus of dabbling ducks. It includes the pintails, most teals, and the mallard and its close relatives. It formerly included additional species but following the publication of a molecular phylogenetic study in 2009 the genus was split into four separate genera. The genus now contains 31 living species. The name Anas is the Latin for "duck".
Tyto is a genus of birds consisting of true barn owls, grass owls and masked owls that collectively make up all the species within the subfamily Tytoninae of the barn owl family, Tytonidae.
Asio is a genus of typical owls, or true owls, in the family Strigidae. This group has representatives over most of the planet, and the short-eared owl is one of the most widespread of all bird species, breeding in Europe, Asia, North and South America, the Caribbean, Hawaii and the Galápagos Islands. Its geographic range extends to all continents except Antarctica and Australia.
Ardea is a genus of herons. These herons are generally large in size, typically 80–100 cm or more in length.
Ninox is a genus of true owls comprising 36 species found in Asia and Australasia. Many species are known as hawk-owls or boobooks, but the northern hawk-owl is not a member of this genus.
Pavo is a genus of two species in the pheasant family. The two species, along with the Congo peafowl, are known as peafowl.
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Tetrao is a genus of birds in the grouse subfamily known as capercaillies. They are some of the largest living grouse. Feathers from the bird were used to create the characteristic hat of the bersaglieri, an Italian ace infantry formation.
The black-banded owl is a species of owl in the family Strigidae. Entirely nocturnal, this midsized black and white neotropical bird is a resident species, and therefore never migrates out of its native South America. Its natural habitats are varied subtropical or tropical forests ranging from lowlands to areas of medium altitude, and it has been found in Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, and Venezuela.
The tawny owl, also called the brown owl, is a stocky, medium-sized owl in the family Strigidae. It is commonly found in woodlands across Europe, as well as western Siberia, and has seven recognized subspecies. The tawny owl's underparts are pale with dark streaks, whilst its upper body may be either brown or grey. The tawny owl typically makes its nest in a tree hole where it can protect its eggs and young against potential predators. It is non-migratory and highly territorial: as a result, when young birds grow up and leave the parental nest, if they cannot find a vacant territory to claim as their own, they will often starve.
The tawny owl was first described by Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae in 1758, under its current scientific name Strix aluco. The binomial derives from the Greek strix "owl" and Italian allocco "tawny owl". Some early descriptions upon review were found to have somehow conflated the very different barn owl by describing it with the same scientific name Strix aluco, which in turn engendered some confusion.