Knysna turaco

Last updated

Knysna turaco
Knysna Turacos.JPG
Pair
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Musophagiformes
Family: Musophagidae
Genus: Tauraco
Species:
T. corythaix
Binomial name
Tauraco corythaix
(Wagler, 1827)
Kynsna Turaco.png
Range of the Knysna turaco: subspp. corythaix (south) and phoebus (north)

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 Eswatini. 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. [2]

Contents

This species lays two eggs 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. 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. When you look at most birds, the color you are seeing is a reflection produced by the feather structure. The turaco's red pigment (turacin) and green pigment (turacoverdin) both contain copper. In fact, if you stirred a glass of water with a red turaco feather, the water would turn pink! In museum species, the pigments deepen with age because the copper begins to oxidize. These birds manage to 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 lends and folds its wings, the red feathers of the wings become invisible and the Loerie has a chance of escaping unseen. [3]

Images

Related Research Articles

<span class="mw-page-title-main">Turaco</span> Family of birds

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 fourth (outer) toe can be switched back and forth. The second and third toes, which always point forward, are conjoined in some species. Musophagids often have prominent crests and long tails; the turacos are noted for peculiar and unique pigments giving them their bright green and red feathers.

<span class="mw-page-title-main">Violet turaco</span> Species of bird

The violet turaco, also known as the violaceous plantain eater, is a large turaco, a group of African otidimorphae.

<span class="mw-page-title-main">Guinea turaco</span> Species of bird

The Guinea turaco, also known as the green turaco or green lourie, is a species of turaco, a group of African otidimorph birds. It formerly included the Livingstone's, Schalow's, Knysna, black-billed and Fischer's turacos as subspecies.

<span class="mw-page-title-main">African paradise flycatcher</span> Species of bird

The African paradise flycatcher is a medium-sized passerine bird. The two central tail feathers of the male are extended into streamers that commonly are more than twice as long as the body. The female tail feathers are of moderate length and without streamers. The upper parts of the male body, wings, and tail are boldly coloured in chestnut or rusty shades, but the underparts and the head are variably grey to blue-gray, with the head of the mature male being darker, commonly glossy black with greenish highlights. The beak and other bare areas, including a wattle ring round the eye, match the colour of the surrounding feathers. The female coloration is similar, though not so showy and glossy and with the head paler.

<i>Tauraco</i> Genus of birds

Tauraco is a genus of turacos. It contains the "typical" or green turacos; though their plumage is not always green all over, the presence of significant amounts of turacoverdin-colored plumage generally sets Tauraco species apart from other Musophagidae. Indeed, as opposed to any other known birds, Tauraco turacos are the only living bird taxa that have any significant green pigment whatsoever, as the greens of many parrots etc. are due to structural color, not pigment. Their genus name was derived from a native West African name.

<span class="mw-page-title-main">Grey go-away-bird</span> Species of bird

The grey go-away-bird, also known as grey lourie, grey loerie, or kwêvoël, is a bold and common bird of the southern Afrotropics. They are present in arid to moist, open woodlands and thorn savanna, especially near surface water. They regularly form groups and parties that forage in tree tops, or dust bathe on the ground. Especially when disturbed, they make their presence known by their characteristically loud and nasal "kweh" or "go-way" calls, with the last syllable typically a descending drawl. Within their range, their unique combination of colour, appearance and habits precludes confusion with other bird species.

<span class="mw-page-title-main">Long-toed lapwing</span> Species of bird

The long-toed lapwing , also known as the long-toed plover, is a species of wading bird in the lapwing subfamily, within the family Charadriidae. It is mainly sedentary and found across central and eastern Africa, from Chad and South Sudan in the north to Mozambique in the southeast of its range. It is one of 13 species of ground-nesting lapwings found in Africa.

<span class="mw-page-title-main">Red-billed ground cuckoo</span> Species of bird

The red-billed ground cuckoo is a species of cuckoo in the tribe Neomorphini of subfamily Crotophaginae. It is found in Brazil, Colombia, Peru, and possibly Ecuador.

<span class="mw-page-title-main">Bannerman's turaco</span> Species of bird

Bannerman's turaco is a species of bird in the family Musophagidae. It is endemic to Cameroon. In French it is known as touraco de Bannerman or touraco doré. Its scientific and common names honour the ornithologist David Armitage Bannerman. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat destruction and the International Union for Conservation of Nature has listed it as an "endangered species".

<span class="mw-page-title-main">Fischer's turaco</span> Species of bird

Fischer's turaco is a species of bird in the family Musophagidae. It is found in Coastal East Africa, including Kenya, Somalia, and Tanzania. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, and arable land. It is threatened by habitat loss and trapping for the wildlife trade.

<span class="mw-page-title-main">White-cheeked turaco</span> Species of bird

The white-cheeked turaco is a species of bird in the family Musophagidae. It is found in Eritrea, Ethiopia, and South Sudan. A mid-sized species, it measures about 43 cm (17 in) in length, including a tail of 19 cm (7.5 in), and weighs about 200–315 g (7.1–11.1 oz). This species is the most commonly raised turaco in captive conditions.

<span class="mw-page-title-main">Livingstone's turaco</span> Species of bird

Livingstone's turaco is a species of bird in the family Musophagidae, which was named for Charles Livingstone, the brother of David Livingstone.

<span class="mw-page-title-main">Purple-crested turaco</span> Species of bird

The purple-crested turaco or, in South Africa, the purple-crested loerie, is a species of bird in the clade Turaco with an unresolved phylogenetic placement. Initial analyses placed the purple-crested turaco in the family Musophagidae, but studies have indicated that these birds do not belong to this family and have been placed in the clade of Turacos with an unresolved phylogeny. It is the National Bird of the Kingdom of Eswatini, and the crimson flight feathers of this and related turaco species are important in the ceremonial regalia of the Swazi royal family.

<span class="mw-page-title-main">Schalow's turaco</span> Species of bird

Schalow's turaco is a frugivorous bird in the family Musophagidae. This bird's common name and Latin binomial commemorate the German banker and amateur ornithologist Herman Schalow.

<span class="mw-page-title-main">Birds of Eden</span> Zoo in Western Cape, South Africa

Birds of Eden is the world's largest free flight aviary and bird sanctuary, located in Kurland village near Plettenberg Bay in the Western Cape, South Africa. The mesh dome of the sanctuary was built over 2.3 hectares of indigenous forest, and is up to 55 metres (180 ft) above ground level. 1.2 kilometres (0.75 mi) of walkways, about 75% of which are elevated, let visitors see the birds at all levels of the aviary.

<span class="mw-page-title-main">Turacoverdin</span>

Turacoverdin is a unique copper uroporphyrin pigment responsible for the bright green coloration of several birds of the family Musophagidae, most notably the turaco. It is chemically related to turacin, a red pigment also found almost exclusively in turacos. Turacoverdin is one of the only true green pigments found in birds, as the coloration that appears in most green feathers is due to the unique properties of blue structural coloration in combination with yellow carotenoids. Turacoverdin and turacin were the first ever chemically characterized feather pigments, and turacoverdin was first isolated and described in 1882 by Dr. C.F.W. Krukenberg.

References

  1. BirdLife International (2018). "Tauraco corythaix". IUCN Red List of Threatened Species . 2018: e.T22688335A130124892. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22688335A130124892.en . Retrieved 12 November 2021.
  2. Roberts 6
  3. "Knysna Loerie". birdsofeden.co.za. Retrieved 23 July 2020.