Tauraco Corythaix
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The Knysna turaco (''Tauraco corythaix''), or, in
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
, Knysna loerie, is a large
turaco The turacos make up the bird family Musophagidae ( "banana-eaters"), which includes '' plantain-eaters'' and '' go-away-birds''. In southern Africa both turacos and go-away-birds are commonly known as loeries. They are semi-zygodactylous: the ...
, one of a group of
Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
n
musophagidae The turacos make up the bird family Musophagidae ( "banana-eaters"), which includes '' plantain-eaters'' and '' go-away-birds''. In southern Africa both turacos and go-away-birds are commonly known as loeries. They are semi-zygodactylous: the ...
bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...
s. It is a resident breeder in the mature evergreen forests of southern and eastern South Africa, and
Eswatini Eswatini, formally the Kingdom of Eswatini, also known by its former official names Swaziland and the Kingdom of Swaziland, is a landlocked country in Southern Africa. It is bordered by South Africa on all sides except the northeast, where i ...
. It was formerly sometimes considered to be a subspecies of the green turaco of West Africa. The Livingstone's and Schalow's turacos were once considered
subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
. This species lays two
egg An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the ...
s in a shallow platform nest made from sticks and placed in a tree or clump of creepers. Within its range, this is an unmistakable bird, although often inconspicuous in the treetops. It is 40–42 cm long, including a long tail. The small but thick orange-red bill and a white line just under the eye contrast with the mainly green
plumage Plumage () is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, there can b ...
. It has a tall green crest, which is tipped with white. The eye is brown and the eye-ring deep red. In flight, Knysna turaco shows conspicuous crimson primary flight feathers. Sexes are similar, but juvenile birds have a shorter crest without the white tips. The Knysna turaco is usually seen flying between forest trees, or hopping along branches. It feeds on fruit, insects and earthworms. It has a loud ''kow-kow-kow-kow'' call. This bird family is known as Loeries in South Africa, but the international name is Turaco. Turacos (the 10 species of the Tauraco and the 2 of the Musophaga) are the only birds to possess true red and green colour. The color human eyes see in most birds’ plumage is a reflection produced by the feather structure. The turaco's red pigment (turacin) and green pigment (turacoverdin) both contain copper. In fact, a glass of water, if stirred with a red turaco feather, will turn pink. In museum species, the pigments deepen with age because the copper begins to oxidize. These birds maintain their colours throughout the year. The Knysna Loerie is thought to use its red wing feathers to escape predators. Indeed, when it flies, the predators tend to focus on the most visible colour and follow the red patch. As the Loerie lands and folds its wings, the red feathers of the wings become invisible and the Loerie has a chance of escaping unseen.


Images

Tauraco corythaix 2.jpg, At Birds of Eden, in the
Eastern Cape The Eastern Cape ( ; ) is one of the nine provinces of South Africa. Its capital is Bhisho, and its largest city is Gqeberha (Port Elizabeth). Due to its climate and nineteenth-century towns, it is a common location for tourists. It is also kno ...
Tauraco corythaix -Knysna, Western Cape Province, South Africa-8.jpg, At
Knysna Knysna (; ) is a town with 76,150 inhabitants (2019 mid-year estimates) in the Western Cape province of South Africa. It is one of the destinations on the loosely defined Garden Route tourist route. It is situated 60 kilometres east of the c ...
, in the
Western Cape The Western Cape ( ; , ) is a provinces of South Africa, province of South Africa, situated on the south-western coast of the country. It is the List of South African provinces by area, fourth largest of the nine provinces with an area of , an ...
Tauraco corythaix.jpg, The vivid plumage is still an effective camouflage in its native habitat Tauraco corythaix MHNT 226 Jardin des Plantes de Paris.jpg, Eggs of ''Tauraco corythaix'' MHNT


References

*Sinclair, Hockey and Tarboton, ''SASOL Birds of Southern Africa'' (Struik 2002)


External links

* Knysna turaco
Species text in The Atlas of Southern African Birds
* Birds of Eden

{{Taxonbar, from=Q937505 Tauraco, Knysna turaco Turacos Birds of Southern Africa
Knysna turaco The Knysna turaco (''Tauraco corythaix''), or, in South Africa, Knysna loerie, is a large turaco, one of a group of African musophagidae birds. It is a resident breeder in the mature evergreen forests of southern and eastern South Africa, and Esw ...