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Great Egret, Great White Heron, Ardea alba

The Great Egret (Ardea alba), also known as the common egret, large egret or (in the Old World) great white egret or great white heron is a large, widely distributed egret, with four subspecies found in Asia, Africa, the Americas, and southern Europe. Distributed across most of the tropical and warmer temperate regions of the world. It builds tree nests in colonies close to water.

Distribution and conservation
The Great Egret is generally a very successful species with a large and expanding range, occurring worldwide in temperate and tropical habitats. It is ubiquitous across the Sun Belt of the United States and in the Neotropics. In North America, large numbers of Great Egrets were killed around the end of the 19th century so that their plumes could be used to decorate hats.

Numbers have since recovered as a result of conservation measures. Its range has expanded as far north as southern Canada. However, in some parts of the southern United States, its numbers have declined due to habitat loss, particularly wetland degradation through drainage, grazing, clearing, burning, increased salinity, groundwater extraction and invasion by exotic plants.

Nevertheless, the species adapts well to human habitation and can be readily seen near wetlands and bodies of water in urban and suburban areas.

The Great Egret is partially migratory, with northern hemisphere birds moving south from areas with colder winters. It is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.

In 1953, the Great Egret in flight was chosen as the symbol of the National Audubon Society, which was formed in part to prevent the killing of birds for their feathers.

On 22 May 2012, it was announced a pair of Great Egrets were nesting in the UK for the first time at the Shapwick Heath nature reserve in Somerset. The species is a rare visitor to the UK and Ben Aviss of the BBC stated that the news could mean the UK's first Great Egret colony is established.

The following week, Kevin Anderson of Natural England confirmed a Great Egret chick had hatched, making it a new breeding bird record for the UK. In 2017 seven nests in Somerset fledged 17 young, and a second breeding site was announced at Holkham National Nature Reserve in Norfolk where a pair fledged three young.

Great Egret, Great White Heron, Ardea alba

Systematics and taxonomy
Like all egrets, it is a member of the heron family, Ardeidae. Traditionally classified with the storks in the Ciconiiformes, the Ardeidae are closer relatives of pelicans and belong in the Pelecaniformes instead. The Great Egret—unlike the typical egrets—does not belong to the genus Egretta but together with the great herons is today placed in Ardea. In the past, however, it was sometimes placed in Egretta or separated in a monotypic genus Casmerodius.

The Old World population is often referred to as the "great white egret". This species is sometimes confused with the great white heron of the Caribbean, which is a white morph of the closely related great blue heron.

The scientific name comes from Latin ardea "heron", and alba, "white".

There are four subspecies in various parts of the world, which differ but little. Differences are bare part coloration in the breeding season and size; the smallest A. a. modesta from Asia and Australasia some taxonomists consider a full species, the eastern Great Egret (Ardea modesta), but most scientists treat it as a subspecies.

• A. a. alba Linnaeus, 1758 – nominate, found in Europe

• A. a. egretta Gmelin, JF, 1789 – found in Americas

• A. a. melanorhynchos Wagler, 1827 – found in Africa

• A. a. modesta Gray, JE, 1831 – eastern Great Egret, found in India, Southeast Asia, and Oceania

Great Egret, Great White Heron, Ardea alba
Great Egrets (And a Common Greenshank)
Front Egret: A.a. modesta with blueish tibia (upper leg)
Egret in the back: A.a. alba with yellow tibia (upper leg)
Ras Al Khor Wildlife Sanctuary, Dubai - December 2018

Thanks to MacNara at Birdforum for teaching me about the different subspecies.

Forum thread HERE


Great Egret bathing at Ras Al Khor Wildlife Sanctuary, Dubai
Ras Al Khor Wildlife Sanctuary, Dubai - December 2018

Great Egret, Great White Heron, Ardea alba
Great Egret busy with grooming itself
Ras Al Khor Wildlife Sanctuary, Dubai - December 2018

The Great Egret is a large heron with all-white plumage. Standing up to 1 m tall, this species can measure 80 to 104 cm in length and have a wingspan of 131 to 170 cm. Body mass can range from 700 to 1,500 g, with an average of around 1,000 g. It is thus only slightly smaller than the great blue or Grey Heron (A. cinerea).

Apart from size, the Great Egret can be distinguished from other white egrets by its yellow bill and black legs and feet, though the bill may become darker and the lower legs lighter in the breeding season.

In breeding plumage, delicate ornamental feathers are borne on the back. Males and females are identical in appearance; juveniles look like non-breeding adults.

Intermediate Egret, Median Egret, Smaller Egret, or Yellow-billed Egret, Ardea intermedia, チュウサギ, นกยางโทนน้อย
Intermediate Egret and a Great Egret
Ras al Khor Wildlife Sanctuary, Dubai, U.A.E - December 2018

Visit my page on how to identify Egrets and Herons by clicking HERE

Differentiated from the intermediate egret (Mesophoyx intermedius) by the gape, which extends well beyond the back of the eye in case of the Great Egret, but ends just behind the eye in case of the intermediate egret.

Great Egret, Great White Heron, Ardea alba
Great Egret in flight
Sundarbans, India - March 2018

It has a slow flight, with its neck retracted. This is characteristic of herons and bitterns, and distinguishes them from storks, cranes, ibises, and spoonbills, which extend their necks in flight. The Great Egret walks with its neck extended and wings held close. The Great Egret is not normally a vocal bird; it gives a low hoarse croak when disturbed, and at breeding colonies, it often gives a loud croaking cuk cuk cuk and higher-pitched squawks.

Listen to the Great Egret

The species breeds in colonies in trees close to large lakes with reed beds or other extensive wetlands, preferably at height of 10–40 feet. It begins to breed at 2–3 years of age by forming monogamous pairs each season. It is unknown if the pairing carries over to the next season. The male selects the nest area, starts a nest and then attracts a female.

The nest, made of sticks and lined with plant material, could be up to 3 feet across. Up to six bluish green eggs are laid at one time. Both sexes incubate the eggs and the incubation period is 23–26 days. The young are fed by regurgitation by both parents and they are able to fly within 6–7 weeks.

The Great Egret feeds in shallow water or drier habitats, feeding mainly on fish, frogs, small mammals, and occasionally small reptiles and insects, spearing them with its long, sharp bill most of the time by standing still and allowing the prey to come within its striking distance of its bill which it uses as a spear. It will often wait motionless for prey, or slowly stalk its victim.

Great Egret fishing at Ras Al Khor Wildlife Sanctuary, Dubai
Ras Al Khor Wildlife Sanctuary, Dubai - December 2018

Great Egret catching fish at Ras Al Khor Wildlife Sanctuary, Dubai
Ras Al Khor Wildlife Sanctuary, Dubai - December 2018

A long-running field study (1962–2013) suggested that the central European Great Egrets host 17 different helminth species. Juvenile Great Egrets were shown to host fewer species, but the intensity of infection was higher in the juveniles than in the adult egrets. Of the digeneans found in central European Great Egrets, numerous species likely infected their definitive hosts outside of central Europe itself.

In culture

• The Great Egret is depicted on the reverse side of a 5-Brazilian reais banknote.

5-Brazilian reais banknote

• White Egrets is the title of Saint Lucian poet Derek Walcott's fourteenth collection of poems.

• The Great Egret is the symbol of the National Audubon Society.

National Audubon Society

• The name of venerable Shariputra, one of the Buddha's best known followers, signifies the son of the egret (among other possibilities), it is said that his mother had eyes like a Great Egret.

• In Belarus, there is a commemorative coin with the image of a Great Egret.

Belarus 1 ruble

• The Great Egret also features on the New Zealand $2 coin.
New Zealand $2 coin

Conservation status
Great Egret, Great White Heron, Ardea alba
Least Concern (IUCN 3.1)
IUCN Red List of Threatened Species. IUCN. 2015: e.T22697043A84959088. Retrieved 11 July 2016.

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

Sighted: (Date of first photo that I could use) 27 October 2019
Location: Lake Ziway, Ethiopia

Great Egret, Great White Heron, Ardea alba
Great Egret / Great White Heron

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