Question: What is the genus of the thrush found in the country where the town of Kosgama is located?

full_context: Document 1: Kottawa railway station: Kottawa Railway Station is a railway station near Kottawa, Sri Lanka, which is a suburb city of Colombo. This station serves the Kaleni Valley Line and services are provided by Sri Lanka Railways.
Document 2: Yellow-billed babbler: Nests of the species have are seen round the year but the peak breeding season is prior to the onset of the Southwest Monsoon. It builds its nest in a tree, concealed in dense masses of foliage. The majority of nests are placed below a height of four metres. The nest is a small cup placed in a fork of a branch. The normal clutch is two to four turquoise blue eggs, although up to five may be laid by birds in the hills of Sri Lanka. The eggs hatch after 14 to 16 days. Brooding parent bird often stands on the rim of the nest rather than sit on the chicks. Brood parasitism by the pied cuckoo (Clamator jacobinus) is known from both the Indian and Sri Lankan region. The common hawk-cuckoo has also been noted as a brood-parasite. In an exceptional case, jungle babblers have been seen feeding the chicks of the yellow-billed babbler. Chicks are fed mainly insects and the occasional lizard. Like most perching birds, the parents take care of nest sanitation, removing the faecal sacs of the young, typically by swallowing them. Helpers have been seen to assist the parents in building the nest as well as in feeding the chicks at the nest.
Document 3: Sunbird: Sunbirds are a tropical Old World family, with representatives in Africa, Asia and Australasia. In Africa they are found mostly in sub-Saharan Africa and Madagascar but are also distributed in Egypt. In Asia the group occurs along the coasts of the Red Sea as far north as Israel, with a gap in their distribution till Iran, from where the group occurs continuously as far as southern China and Indonesia. In Australasia the family occurs in New Guinea, north eastern Australia and the Solomon Islands.  They are generally not found on oceanic islands, with the exception of the Seychelles. The greatest variety of species is found in Africa, where the group probably arose. Most species are sedentary or short-distance seasonal migrants. Sunbirds occur over the entire family's range, whereas the spiderhunters are restricted to Asia.The sunbirds and spiderhunters occupy a wide range of habitats, with a majority of species being found in primary rainforest, but other habitats used by the family including disturbed secondary forest, open woodland, open scrub and savannah, coastal scrub and alpine forest. Some species have readily adapted to human modified landscapes such as plantations, gardens and agricultural land. Many species are able to occupy a wide range of habitats from sea level to 4900 m.
Document 4: Beragala: Beragala is a small town in Sri Lanka. It is located in Badulla District of Uva Province, Sri Lanka. It is located 183 km away from Colombo along the A4 Highway. The area is known for its natural environment, as well as for landslides.
Document 5: Koswatte: Koswatta is a junction located inside the main town Battaramulla located near Colombo in Sri Lanka. The junction is also known as the "Thalangama-Koswatte" junction.
Document 6: Short-toed rock thrush: The short-toed rock thrush ("Monticola brevipes") is a species of bird in the family Muscicapidae. It is found in Angola, Botswana, Namibia, and South Africa. Its natural habitat is subtropical or tropical dry shrubland.
Document 7: Kitulgala: Kitulgala is a small town in the west of Sri Lanka. It is in the wet zone rain forest, which gets two monsoons each year, and is one of the wettest places in the country. Nevertheless, it comes alive in the first three months of the year, especially in February, the driest month. The Academy Award-winning "The Bridge on the River Kwai" was filmed on the Kelani River near Kitulgala, although nothing remains now except the concrete foundations for the bridge (and, supposedly, the submerged train cars that plunged into the river in the climactic scene). Kitulgala is also a base for white-water rafting, which starts a few kilometres upstream and also popular as a location for adventure based training programs.
Document 8: Kosgama: Kosgama is a small town in Colombo District, Sri Lanka. Located 46 km from Colombo, on the A4 (Colombo - Avissawella) highway, it is also served by the Kelani Valley Railway Line. The town is administered by the Seethawaka Pradeshiya Sabha (Divisional Council).
Document 9: Sri Lanka thrush: The Sri Lanka thrush or Sri Lanka scaly thrush ("Zoothera imbricata") is a member of the thrush family Turdidae. This bird is a non-migratory resident breeder found in south western wetlands of the island of Sri Lanka.
Document 10: Lord Howe thrush: The Lord Howe thrush ("Turdus poliocephalus vinitinctus"), also known as vinous-tinted thrush or vinous-tinted blackbird, is an extinct subspecies of the island thrush ("Turdus poliocephalus"). It was endemic to Lord Howe Island, an Australian island in the Tasman Sea, where it was also called the doctor bird or ouzel by the islanders.
Document 11: Buru thrush: The Buru thrush ("Geokichla dumasi") is a species of bird in the family Turdidae. It is endemic to montane rainforest on Buru in Indonesia. Traditionally, it included the Seram thrush as a subspecies, in which case the common name of the 'combined species' was Moluccan thrush.
Document 12: Common myna: The common myna / Indian mynah (Acridotheres tristis), sometimes spelled mynah, also sometimes known as ``Indian myna '', is a member of the family Sturnidae (starlings and mynas) native to Asia. An omnivorous open woodland bird with a strong territorial instinct, the myna has adapted extremely well to urban environments.
Document 13: Colombo: Colombo (English: / kəˈlʌmboʊ /; Sinhalese: කොළඹ Kolamba, pronounced (ˈkəlɐmbɞ); Tamil: கொழும்பு, translit. Koḻumpu) is the commercial capital and largest city of Sri Lanka. According to the Brookings Institution, Colombo metropolitan area has a population of 5.6 million, and 752,993 in the city proper. It is the financial centre of the island and a popular tourist destination. It is located on the west coast of the island and adjacent to the Greater Colombo area which includes Sri Jayawardenepura Kotte, the legislative capital of Sri Lanka and Dehiwala - Mount Lavinia. Colombo is often referred to as the capital since Sri Jayawardenepura Kotte is within the urban area of, and a suburb of, Colombo. It is also the administrative capital of Western Province, Sri Lanka and the district capital of Colombo District. Colombo is a busy and vibrant place with a mixture of modern life and colonial buildings and ruins. It was the legislative capital of Sri Lanka until 1982.
Document 14: Borneo thrush: The Borneo thrush ("Turdus poliocephalus seebohmi"), also known as the mountain blackbird or locally in Dusun as Luhui tana, is a bird in the thrush family. It is a subspecies of the island thrush ("Turdus poliocephalus") endemic to the island of Borneo.
Document 15: Kohuwala: Kohuwala is a suburb in Colombo, Sri Lanka and is situated where the Colombo Piliyandala Road crosses Nugegoda Dehiwala Road. Hence it is connected to Nugegoda, Dehiwala and /Pamankada/Colombo and Boralesgamuwa/Piliyandala. Kohuwala is very close to Colombo South Teaching Hospital, Kalubowila. Kohuwala is inside the administration boundary of Dehiwala-Mount Lavinia Municipal Council.
ground_truth: Zoothera
sub_queries: Kosgama >> country Answer: Sri Lanka
What kind of family is Sri Lanka thrush of? Answer: Zoothera