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Encyclopedia > Swainson's Thrush
Swainson's Thrush
Photo: Thrush
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Turdidae
Genus: Catharus
Species: ustulatus
Binomial name
Catharus ustulatus
(Nuttall, 1840)

The Swainson's Thrush, Catharus ustulatus, is a medium-sized thrush. This species is 16-18 cm in length, and has the white-dark-white underwing patterm characteristic of Catharus thrushes. Swainsons Thrush from US NPS Source: U.S. National Park Service, Yukon-Charley Rivers National Preserve Caption: Swainsons Thrush [Catharus ustulatus] (NPS Photo) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Scientific classification - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Bilateria Acoelomorpha Orthonectida Rhombozoa ?Myxozoa Superphylum Deuterostomia    Chordata (vertebrates, etc. ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders Many - see section below. ... Families Many, see text A passerine is a bird of the giant order Passeriformes. ... Genera 22 genera, see text The Thrushes, family Turdidae, are a group of passerine birds that occur mainly but not exclusively in the Old World. ... Genera Catharus Hylocichla The American thrushes and nightingale-thrushes which are the subject of this article are the small, mostly insectivorous or omnivorous birds in the genera Catharus and Hylocichla of the thrush family Turdidae. ... In biology, binomial nomenclature is a standard convention used for naming species. ... Thomas Nuttall (January 5, 1786 - September 10, 1859) was an English botanist and zoologist, who lived and worked in America from 1808 until 1842. ... 1840 is a leap year starting on Wednesday (link will take you to calendar). ... Genera 22 genera, see text The Thrushes, family Turdidae, are a group of passerine birds that occur mainly but not exclusively in the Old World. ...


Four subspecies are recognised, Cathartus ustulatus alame, C. u. swainsoni, C. u. ustulatus and C. u. oedicus. Adults are brown on the upperparts. The underparts are white with brown on the flanks; the breast is lighter brown with darker spots. They have pink legs and a light brown eye ring. Birds in the east are more olive-brown on the upperparts; western birds are more reddish-brown.


Their breeding habitat is coniferous woods with dense undergrowth across Canada, Alaska and the northern United States, also deciduous wooded areas on the Pacific coast of North America. They make a cup nest on a horizontal tree branch. Subspecies Cathartus ustulatus alame and C. u. swainsoni summer east of the British Columbian Coast Mountains, the Cascades and the Sierra Nevada, and C. u. ustulatus and C. u. oedicus summer west of these ranges. There is a small area of overlap in the Coast Mountains. Recent molecular systematics work by Ruegg and Smith (2002) confirms that these two pairs of subspecies form two genetically distinct clades, referred to as the continental and coastal clades, which diverged during the Late Pleistocene era, probably about 10,000 years ago. Orders & Families Cordaitales † Pinales   Pinaceae - Pine family   Araucariaceae - Araucaria family   Podocarpaceae - Yellow-wood family   Sciadopityaceae - Umbrella-pine family   Cupressaceae - Cypress family   Cephalotaxaceae - Plum-yew family   Taxaceae - Yew family Vojnovskyales † Voltziales † The conifers, division Pinophyta, are one of 13 or 14 division level taxa within the Kingdom Plantae. ... State nickname: The Last Frontier, The Land of the Midnight Sun Other U.S. States Capital Juneau Largest city Anchorage Governor Frank Murkowski Official languages English Area 1,717,854 km² (1st)  - Land 1,481,347 km²  - Water 236,507 km² (13. ... Deciduous forest after leaf fall Deciduous means temporary or tending to fall off (deriving from the Latin word decidere, to fall off). ... For other meanings of Pacific, see Pacific (disambiguation). ... World map showing location of North America A satellite composite image of North America North America is the third largest continent in area and in population after Eurasia and Africa. ... Motto: Splendor Sine Occasu (Splendour without diminishment) Other Canadian provinces and territories Capital Victoria Largest city Vancouver Lieutenant Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Area 944,735 km² (5th)  - Land 925,186 km²  - Water 19,549 km² (2. ... The Coast Mountains range begins just north of Vancouver, British Columbia and stretches along the Pacific coast of Canada into southeastern Alaska. ... Mount Adams in Washington state The Cascade Range is a mountainous region famous for its chain of tall volcanos called the High Cascades that run north-south along the west coast of North America from British Columbia to the Shasta Cascade area of northern California. ... The Sierra Nevada is a mountain range that is mostly in eastern California. ... Molecular systematics is a product of the traditional field of systematics and the growing field of bioinformatics. ... Greek clados = branch) or phylogenetic systematics is a branch of biology that determines the evolutionary relationships of living things based on derived similarities. ... The Pleistocene epoch is part of the geologic timescale, usually dated as 1. ...


These birds migrate to southern Mexico and as far south as Argentina. The coastal subspecies migrate down the Pacific coast of North America and winter from Mexico to Costa Rica, whereas the continental birds migrate eastwards within North America (a substantial detour) and then travel southwards via Florida to winter from Panama to Bolivia. Swainson's Thrush is a very rare wanderer to western Europe. Long-distance land bird migration Many species of land birds migrate very long distances, the most common pattern being for birds to breed in the temperate or arctic northern hemisphere and winter in warmer regions, often in the tropics or the southern hemisphere. ... State nickname: Everglade State, Sunshine State Other U.S. States Capital Tallahassee Largest city Jacksonville Governor Jeb Bush Official languages English Area 170,451 km² (22nd)  - Land 137,374 km²  - Water 30,486 km² (17. ... World map showing location of Europe A satellite composite image of Europe Europe is geologically and geographically a peninsula, forming the westernmost part of Eurasia. ...


They forage on the forest floor, also in trees. They mainly eat insects, fruits and berries.


This bird's song is a hurried series of flute-like tones spiralling upwards. They may be displaced by the Hermit Thrush where their ranges overlap. Binomial name Catharus guttatus (Pallas, 1811) The Hermit Thrush, Catharus guttatus, is a medium-sized thrush. ...


The genetic differences between the subspecies, and the circuitous migratory route of the continental birds, strongly suggest that these species underwent a rapid range expansion following the end of the last ice age, with populations originally summering in the south-east of North America expanding their ranges northwards and westwards as the ice retreated. Details of the molecular genetic analysis support the hypothesis of rapid expansion of both coastal and continental populations. The current migratory routes of the continental birds, especially the western populations, are not optimal in ecological terms, and presumably represent an inherited, historical route pattern that has not yet adapted to the birds' modern population locations. Variations in CO2, temperature and dust from the Vostok ice core over the last 400 000 years For the animated movie, see Ice Age (movie). ...


Swainson's Thrush was named after William Swainson, an English ornithologist. William Swainson (October 8, 1789 - December 6, 1855), was an English ornithologist and artist. ... Royal motto: Dieu et mon droit (French: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area  - Total Ranked 1st UK 130,395 km² Population  - Total (2001)  - Density Ranked 1st UK 49,138,831 377/km² Religion... Ornithology (from the Greek ornitha = chicken and logos = word/science) is the branch of biology concerned with the scientific study of birds. ...


References

  • Ruegg, K. C., & Smith, T. B. (2002). Not as the crow flies: a historical explanation for circuitous migration in Swainson's thrush (Catharus ustulatus). Proceedings of the Royal Society of London Series B, 269, 1375-1381.

 
 

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