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Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ

The Glossy Ibis (Plegadis falcinellus) is a wading bird in the ibis family Threskiornithidae. The scientific name derives from Ancient Greek plegados and Latin, falcis, both meaning "sickle" and referring to the distinctive shape of the bill.

Distribution
This is the most widespread ibis species, breeding in scattered sites in warm regions of Europe, Asia, Africa, Australia, and the Atlantic and Caribbean regions of the Americas. It is thought to have originated in the Old World and spread naturally from Africa to northern South America in the 19th century, from where it spread to North America.

The Glossy Ibis was first found in the New World in 1817 (New Jersey). Audubon saw the species just once in Florida in 1832. It expanded its range substantially northwards in the 1940s and to the west in the 1980s.

This species is migratory; most European birds winter in Africa, and in North America birds from north of the Carolinas winter farther south. Birds from other populations may disperse widely outside the breeding season.

While generally declining in Europe, it has recently established a breeding colony in southern Spain, and there appears to be a growing trend for the Spanish birds to winter in Britain and Ireland, with at least 22 sightings in 2010.

In 2014, a pair attempted to breed in Lincolnshire, the first such attempt in Britain. A few birds now spend the summer in Ireland, but as yet there is no evidence of breeding there.

Habitat
Glossy ibises feed in very shallow water and nest in freshwater or brackish wetlands with tall dense stands of emergent vegetation such as reeds, papyrus or rushes) and low trees or bushes. They show a preference for marshes at the margins of lakes and rivers but can also be found at lagoons, flood-plains, wet meadows, swamps, reservoirs, sewage ponds, paddies and irrigated farmland.

It is less commonly found in coastal locations such as estuaries, deltas, salt marshes and coastal lagoons. Preferred roosting sites are normally in large trees which may be distant from the feeding areas.

Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ

Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ
Range map from www.oiseaux.net - Ornithological Portal Oiseaux.net
www.oiseaux.net is one of those MUST visit pages if you're in to bird watching. You can find just about everything there


Behaviour
Glossy ibises undertake dispersal movements after breeding and are very nomadic. The more northerly populations are fully migratory and travel on a broad front, for example across the Sahara Desert. Populations in temperate regions breed during the local spring, while tropical populations nest to coincide with the rainy season.

Nesting is often in mixed-species colonies. When not nesting, flocks of over 100 individuals may occur on migration, and during the winter or dry seasons the species is usually found foraging in small flocks. Glossy ibises often roost communally at night in large flocks, with other species, occasionally in trees which can be some distance from wetland feeding areas.

Description
This species is a mid-sized ibis. It is 48–66 cm long, averaging around 59.4 cm with an 80–105 cm wingspan. The culmen measures 9.7 to 14.4 cm in length, each wing measures 24.8–30.6 cm, the tail is 9–11.2 cm and the tarsus measures 6.8–11.3 cm.

Culmen

noun ( PL. culmina )
1  Ornithology the upper ridge of a bird's bill.

2  Anatomy a small region in the brain on the anterior surface of the cerebellum.

ORIGIN
mid 17th cent. (in the sense top, summit): from Latin, contraction of columen ‘top, summit’.


The body mass of this ibis can range from 485 to 970 g. Breeding adults have reddish-brown bodies and shiny bottle-green wings. Non-breeders and juveniles have duller bodies. This species has a brownish bill, dark facial skin bordered above and below in blue-gray (non-breeding) to cobalt blue (breeding), and red-brown legs. Unlike herons, ibises fly with necks outstretched, their flight being graceful and often in V formation. It also has shiny feathers.

Length: 48 - 66 cm
Wingspan: 80 - 105 cm
Weight: 485 - 970 g
Longevity: 5 Years
Distinctive Feature
Similar Species


From opus at www.birdforum.net the forum for wild birds and birding.


Sounds made by this rather quiet ibis include a variety of croaks and grunts, including a hoarse grrrr made when breeding.

Listen to the Glossy Ibis

www.xeno-canto.org

Remarks from the Recordist

Calls of birds on ground.



Breeding
The nest is usually a platform of twigs and vegetation positioned at least 1 m above water, sometimes up to 7 m in tall, dense stands of emergent vegetation, low trees or bushes. 3 to 4 eggs (occasionally 5) are laid, and are incubated by both male and female birds for between 20 and 23 days. The young can leave the nest after about 7 days, but the parents continue to feed them for another 6 or 7 weeks. The young fledge in about 28 days.

Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ
Egg, Collection Museum Wiesbaden
By Klaus Rassinger und Gerhard Cammerer, Museum Wiesbaden - Own work, CC BY-SA 3.0,
https://commons.wikimedia.org/w/index.php?curid=36428269


Diet
The diet of the Glossy Ibis is variable according to the season and is very dependent on what is available. Prey includes adult and larval insects such as aquatic beetles, dragonflies, damselflies, grasshoppers, crickets, flies and caddisflies, Annelida including leeches, molluscs (e.g. snails and mussels), crustaceans (e.g. crabs and crayfish) and occasionally fish, amphibians, lizards, small snakes and nestling birds.

Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ
Glossy Ibis looking for food
Lake Cheleleka, Binshoftu, Ethiopia - November 2019


Conservation
The Glossy Ibis is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies. Glossy ibises can be threatened by wetland habitat degradation and loss through drainage, increased salinity, groundwater extraction and invasion by exotic plants.

The common name black curlew may be a reference to the Glossy Ibis and this name appears in Anglo-Saxon literature.[citation needed] Yalden and Albarella do not mention this species as occurring in medieval England.

Conservation status
Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ
Least Concern (IUCN 3.1)
International Union for Conservation of Nature. Retrieved 26 November 2013.



From Wikipedia, the free encyclopedia
From Wikipedia, the free encyclopedia

www.birdforum.net


Sighted: (Date of first photo that I could use) 19th of November 2014
Location: Xakanaxa, Botswana


Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ
Glossy Ibis - 20 October 2019 - Chelekleka Lake, Bishoftu, Ethiopia

Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ
Glossy Ibis - 11 November 2019 - Chelekleka Lake, Bishoftu, Ethiopia

Glossy Ibis, Plegadis falcinellus, นกช้อนหอยดำเหลือบ
Glossy Ibis - 11 November 2019 - Chelekleka Lake, Bishoftu, Ethiopia



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