Sooty thrush | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Turdidae |
Genus: | Turdus |
Species: | T. nigrescens |
Binomial name | |
Turdus nigrescens Cabanis, 1860 | |
The sooty thrush (Turdus nigrescens) is a large thrush endemic to the highlands of Costa Rica and western Panama. It was formerly known as the sooty robin.
This is an abundant bird of open areas and oak forest edge normally above 2200 m altitude. It builds a heavy grass-lined cup nest in a tree 2–8 m above the ground, and the female lays two unmarked greenish-blue eggs between March and May.
The sooty thrush resembles other Turdus thrushes in general appearance and habits. It is 24–25.5 cm long, and weighs 96 g on average. The adult male is brownish-black with black wings and tail, and a black area between the orange bill and the eye. The legs and bare eye ring are orange and the iris is pale grey. The female is similar but browner and somewhat paler, and has yellow-orange bare parts. The juvenile resembles the adult female but has buff or orange streaks on the head and upperparts and dark spotting on the underparts.
Two superficially similar relatives share this species' range. The mountain thrush is uniformly brown with dark bare parts, and the clay-colored robin is much paler and yellow-billed.
The sooty thrush behaves like other thrushes such as the American robin. It forages on the ground, singly or in pairs, progressing in hops and dashes with frequent stops. It turns leaf litter seeking insects and spiders, and also eats small fruits, especially Ericaceae and Solanum .
The breeding season song is a gurgling squeaky chuweek chuweek seechrrzit seechrrzit seechrrzit seechrrzit tseeur tseeur tseeur tseeur, and the call is a grating grrrrkk.
The common blackbird is a species of true thrush. It is also called the Eurasian blackbird, or simply the blackbird where this does not lead to confusion with a similar-looking local species. It breeds in Europe, Asiatic Russia, and North Africa, and has been introduced to Australia and New Zealand. It has a number of subspecies across its large range; a few of the Asian subspecies are sometimes considered to be full species. Depending on latitude, the common blackbird may be resident, partially migratory, or fully migratory.
The African thrush or West African thrush is a passerine bird in the thrush family Turdidae. It is common in well-wooded areas over much of the western part of sub-Saharan Africa, it was once considered to be conspecific with the olive thrush but that species has now been split further. Populations are resident (non-migratory).
The spectacled thrush, bare-eyed thrush, or yellow-eyed thrush, is a resident breeding bird in the Lesser Antilles and in South America from Colombia and Venezuela south and east to northern Brazil. In Trinidad and Tobago, this thrush is also known as big-eye grieve.
The white-necked thrush is a songbird found in forest and woodland in South America. The taxonomy is potentially confusing, and it sometimes includes the members of the T. assimilis group as subspecies, in which case the "combined species" is referred to as the white-throated thrush. On the contrary, it may be split into two species, the rufous-flanked thrush and the grey-flanked thrush.
The yellow-legged thrush is a songbird of northern and eastern South America and the Caribbean.
The collared plover is a small shorebird in the plover family, Charadriidae. It lives along coasts and riverbanks of the tropical to temperate Americas, from central Mexico south to Chile and Argentina.
The clay-colored thrush is a common Middle American bird of the thrush family (Turdidae). It is the national bird of Costa Rica, where it is well known as the yigüirro. Other common names include clay-colored robin.
The mountain thrush is a large thrush which is found in Central America. It was formerly known as the mountain robin. Some authorities refer to it as the American mountain thrush to differentiate it from the Abyssinian thrush, known in their taxonomy as the African mountain thrush.
The lesser ground cuckoo is a species of cuckoo in the tribe Neomorphini of subfamily Crotophaginae. It is found in Costa Rica, El Salvador, Guatemala, Honduras, Mexico, and Nicaragua.
The pale thrush is a passerine bird of the eastern Palearctic belonging to the genus Turdus in the thrush family Turdidae. It is closely related to the eye-browed thrush and grey-backed thrush.
The Nicaraguan grackle is a species of passerine bird belonging to the genus Quiscalus, a genus of grackles in the New World blackbird family, Icteridae. It is found only in Nicaragua and northernmost Costa Rica.
The white-throated thrush is a species of bird in the family Turdidae. It is found in Mexico and Central America, ranging south to central Panama. This species has been referred to in some literature as "white-throated robin." However, that name is now more usually applied to the Old World species Irania gutturalis.
The chestnut-bellied thrush is a species of bird in the family Turdidae. It is found in Colombia, Ecuador, Peru, and Venezuela. Its natural habitats are subtropical or tropical moist montane forests and heavily degraded former forest.
The red-legged thrush is a species of bird in the family Turdidae. Native to the Caribbean, it is found in the Bahamas, Cayman Islands, Cuba, Dominica, Hispaniola and Puerto Rico. It formerly occurred on the Swan Islands, Honduras, but was extirpated there.
The Indian blackbird is a member of the thrush family Turdidae. It was formerly considered a subspecies of the common blackbird. It is found only in India and Sri Lanka. The subspecies from most of the Indian subcontinent, simillimus, nigropileus, bourdilloni and spencei, are small, only 19–20 centimetres long, and have broad eye-rings. They also differ in proportions, wing formula, egg colour and voice from the common blackbird.
The Tibetan blackbird is a species of bird in the thrush family Turdidae. It is found in the Himalayas from northern Pakistan to southeastern Tibet. Originally described as a separate species by Henry Seebohm in 1881, it was then considered a subspecies of the common blackbird until 2008, when phylogenetic evidence revealed that it was only distantly related to the latter species. It is a relatively large thrush, having an overall length of 23–28 centimetres. Males are blackish-brown all over with darker plumage on the head, breast, wings and tail and dull orange-yellow bills, while females have browner underparts, faint streaking on the throat, and a dull darkish yellow bill. Both sexes may seem slightly hooded. It can be differentiated from the common blackbird by its complete lack of an eye-ring and reduced song.
The rufous-backed robin is a songbird of the thrush family. It is endemic to the Pacific slope of Mexico. It is also known as the rufous-backed thrush.