Biology:Orange ground thrush
| Orange ground thrush | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Turdidae |
| Genus: | Geokichla |
| Species: | G. gurneyi
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| Binomial name | |
| Geokichla gurneyi (Hartlaub, 1864)
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| Synonyms | |
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Zoothera gurneyi | |
The orange ground thrush (Geokichla gurneyi) is a species of bird in the family Turdidae.
Taxonomy
The orange ground thrush was described as Turdus gurneyi by Hartlaub in 1864.[2] It is named after John Henry Gurney Sr., an English banker, politician and ornithologist.[3] There are five subspecies: G. g. chuka found in central Kenya; G. g. raineyi found in southeastern Kenya; G. g. otomitra found in western Angola, southeastern Democratic Republic of the Congo, Tanzania, and northern Malawi; G. g. gurneyi found in eastern South Africa; and G. g. disruptans found in central Malawi to northeastern South Africa.[4]
Distribution and habitat
Its habitat is montane forests,[2] namely the afromontane of southeastern Africa. The size of its range is estimated at 5,370,000 km2 (2,070,000 sq mi).[1] It is found at elevations of 500–2,500 m (1,600–8,200 ft).[1]
Description
Its length is 21–23 cm (8.3–9.1 in). The male weighs 44.5–64.5 g (1.57–2.28 oz), and the female weighs 48.5–76 g (1.71–2.68 oz).[2] The upperparts are olive-brown; some parts have a grey tinge.[2] The flight feathers are blackish-brown. There are two bars on the wing.[2] The throat, breast and flanks are orange. The vent is white. There is an incomplete white eye-ring.[2] The beak is dark.[5] The legs are pink.[2] The female is similar to the male but is less bright.[2] The immature has mottled underparts.[5]
Behaviour
The orange ground thrush is crepuscular.[2] It is sedentary, but makes altitudinal movements in some regions.[6] Its call is tsip and cureek. Its song is a series of several mellow and melodious notes.[2] It feeds on the ground. Its diet is earthworms, insects, molluscs and fruits.[2] The breeding season is January to May in Kenya, August to December in Tanzania, October to January in Malawi, and September to December in Mozambique, South Africa and Zimbabwe.[2] In breeding pairs, the female has been observed to consistently weigh more than the male.[2] The nest is a deep cup built of moss, twigs, leaves, roots and ferns.[2] There are 2 to 3 turquoise-blue eggs.[2] The eggs are incubated for 15 days. The fledging period is 18 to 20 days.[2]
Status
Its population size is not known.[1] Its population is declining because of habitat loss. The IUCN Red List has listed the species as least concern because it has a large range and its population is not declining quickly enough for it to be considered vulnerable.[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 BirdLife International (2018). "Geokichla gurneyi". IUCN Red List of Threatened Species 2018: e.T22708426A131947992. doi:10.2305/IUCN.UK.2018-2.RLTS.T22708426A131947992.en. https://www.iucnredlist.org/species/22708426/131947992. Retrieved 16 November 2021.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 Clement, Peter; Hathway, Ren (2010). Thrushes. Bloomsbury. pp. 244–245. ISBN 9781408135419. https://books.google.com/books?id=WAZCBAAAQBAJ&pg=PA244.
- ↑ Jobling, James A. (2010). Helm Dictionary of Scientific Bird Names. Bloomsbury. p. 181. ISBN 9781408133262. https://books.google.com/books?id=-RfSBAAAQBAJ&pg=PA181.
- ↑ Gill, F.; Donsker, D., eds. "Thrushes". http://www.worldbirdnames.org/bow/thrushes/.
- ↑ 5.0 5.1 Newman, Kenneth (2002). Newman's Birds of Southern Africa. Struik. p. 332. ISBN 9781868727353. https://books.google.com/books?id=yYqLZtf5w0gC&pg=PA332.
- ↑ The Atlas of Southern African Birds. p. 159. http://sabap2.adu.org.za/docs/sabap1/579.pdf.
Wikidata ☰ Q27075625 entry
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