Spectacled thrush | |
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Adult spectacled thrush in Tobago, showing eyering for which it is named | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Turdidae |
Genus: | Turdus |
Species: | T. nudigenis |
Binomial name | |
Turdus nudigenis Lafresnaye, 1848 | |
The spectacled thrush, bare-eyed thrush, or yellow-eyed thrush [2] (Turdus nudigenis), 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 similar but allopatric Ecuadorian thrush was formerly considered a subspecies of the bare-eyed thrush and named T. n. maculirostris; it is now normally considered as a separate species T. maculirostris. It has a narrower eyering and is only found in forest and woodland in western Ecuador and northwestern Peru.
The spectacled thrush is 23–24 cm (9.1–9.4 in) long and weighs 60 g (2.1 oz). It is plain olive-brown above and paler brown below. The throat is brown-streaked off-white, and the lower belly is whitish. It has a prominent yellow eye ring which gives rise to its English and scientific names.
There are two poorly defined subspecies, differing mainly in the darkness of the plumage. Sexes are similar, but young birds are flecked above and spotted below, and have a thinner eye ring.
The song is a musical warble, slower and lower pitched than that of the cocoa thrush (T. fumigatus), and it also produces a cat-like queeoow call and, when uncomfortable, emits a kereel.
The habitat of this large thrush is open woodland, forest clearings and cultivation. The bare-eyed thrush mainly feeds on or near the ground on fruit, berries and some insects and earthworms. It is a shy species, but on Trinidad and Tobago it is much tamer, and will come to feeders and take food from tables.
The nest is a lined bulky cup of twigs low in a tree. The two to three reddish-blotched deep-blue eggs are incubated by the female alone.
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 rufous-vented chachalaca is a member of an ancient group of birds of the family Cracidae, which are related to the Australasian mound builders. It inhabits northeast Colombia and northern Venezuela where it is called guacharaca, and the island of Tobago in Trinidad and Tobago where it is known as the cocrico and is one of the country's two national birds. It is also found on Bequia and Union Island in the Grenadines where it may have been introduced.
The cocoa thrush is a resident breeding thrush in South America, from eastern Colombia south and east to central and eastern Brazil, as well as on the Caribbean island of Trinidad and some of the Lesser Antilles.
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 bicolored conebill is a small passerine bird. This member of the tanager family is a resident breeder in South America from Colombia, Venezuela and Trinidad south and east to the Guianas, northeast Peru and Brazil.
The scrub greenlet or scrub vireo is a small passerine bird in the vireo family. It breeds in Costa Rica, Panama, Colombia, Venezuela and Tobago. They can be found in the southernmost part of Central America and northern South America, which can be defined as extending from Venezuela to Colombia.
The forest elaenia is a small passerine bird in the tyrant flycatcher family. It breeds from Panama through Colombia, Venezuela and the Guianas to Bolivia and Brazil. It also occurs on Trinidad.
The masked yellowthroat is a New World warbler. It has a number of separate resident breeding populations in South America. The black-lored yellowthroat and southern yellowthroat were formerly considered subspecies.
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.
Platycichla is a small disputed genus of tropical South American thrushes. It contains just two species:
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 Trinidad euphonia is a species of bird in the family Fringillidae. It is common in northern Colombia and northern Venezuela and uncommon to rare on the Caribbean island of Trinidad. Like all euphonias, it is small, stocky, and short-tailed; unlike some, it is sexually dimorphic. The male is glossy blue-black on the head, back, throat, and upper breast, with a bright yellow forehead and crown, and bright yellow underparts. The female is olive-green above and yellow-olive below, with a grayer patch running down the center of her breast and abdomen, and bright yellow undertail coverts. Its calls are high-pitched, plaintive whistles: the two most common are a single-pitched, double-noted "pee pee" or "tee dee", or a rising, double-noted "puwee", "cooleee" or "duu dee". Its song is a short, jumbled mix of musical and nonmusical notes.
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 Comoro thrush is a species of bird in the family Turdidae. It is found in the Comoros Islands in the south western Indian Ocean.
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 Ecuadorian thrush is a resident bird found in western South America in western Ecuador and far northwestern Peru. It was formerly considered to be a subspecies of the spectacled thrush, Turdus nudigenis, but has a narrower eyering, and is widely separated in range.
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 sooty thrush is a large thrush endemic to the highlands of Costa Rica and western Panama. It was formerly known as the sooty robin.