Species of bird
For the curtly history by Sarah Orne Jewett, see A White Heron not to be confused with the all-white population of the bang-up blue hero

The great egret ( Ardea alba ), besides known as the common egret, large egret, or ( in the Old World ) great white egret [ 2 ] or great white heron [ 3 ] [ 4 ] [ 5 ] is a boastfully, wide distributed egret, with four subspecies found in Asia, Africa, the Americas, and southern Europe, recently besides spreading to more northern areas of Europe. Distributed across most of the tropical and warm temperate regions of the world, it builds tree nests in colonies close to water .

Taxonomy and systematics [edit ]

Like all egrets, it is a member of the hero kin, Ardeidae. traditionally classified with the storks in the Ciconiiformes, the Ardeidae are closer relatives of pelicans and belong in the Pelecaniformes, alternatively. The great egret — unlike the typical egrets — does not belong to the genus Egretta, but together with the big 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 much referred to as the “ bang-up egg 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 gloomy heron. The scientific name comes from Latin ardea, “ hero ”, and alba, “ flannel ”. [ 6 ]

Subspecies [edit ]

Four subspecies are found in versatile parts of the world, which differ but little. [ 7 ] Differences among them include bare-part coloration in the breed season and size. The smallest subspecies, A. a. modesta, is from Asia and Australasia and some taxonomists consider it to be a full moon species, the eastern great egret ( Ardea modesta ), but most scientists treat it as a subspecies .

description [edit ]

adult In fledge The bang-up egret is a big hero with all-white feather. Standing up to 1 megabyte ( 3.3 foot ) tall, this species can measure 80 to 104 curium ( 31 to 41 in ) in length and have a wingspan of 131 to 170 centimeter ( 52 to 67 in ). [ 8 ] [ 9 ] Body bulk can range from 700 to 1,500 deoxyguanosine monophosphate ( 1.5 to 3.3 pound ), with an median approximately 1,000 thousand ( 2.2 pound ). [ 10 ] It is thus only slightly smaller than the bang-up blue or grey heron ( A. cinerea ). aside from size, the capital egret can be distinguished from other white egrets by its jaundiced placard and black legs and feet, though the bill may become dark and the lower leg light in the education season. In breeding feather, delicate ornamental feathers are borne on the back. Males and females are identical in appearance ; juveniles look like nonbreeding adults. Differentiated from the intermediate egret ( Mesophoyx intermedius ) by the goggle, which extends well beyond the back of the center in font of the great egret, but ends good behind the eye in case of the intermediate egret. It has a behind 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 song bird ; it gives a low, gruff die when disturbed, and at breeding colonies, it frequently gives a brassy murmur cuk cuk cuk and higher-pitched squawk. [ 11 ] Owing to its wide distribution across so much of the Americas, adenine well as Africa, Europe and Asia, the capital egret shares its habitat with many other similar species. For case, the little egret ( Egretta garzetta ), average egret ( Ardea intermedia ), chinese egret ( Egretta eulophotes ), and the western reef hero ( Egretta gularis ). In the Americas, the white egret ( Egretta thula ) — a medium-sized hero that shares the lapp habitat as the great egret — is one such species. The white egret is promptly distinguished from the great egret because it is perceptibly smaller, and it has a more slender bill which is black in tinge and jaundiced feet, whereas the bang-up egret has a yellow circular and black feet. Another species that — in North America — is well confused with the great egret is the white morph of the great blue hero ( Ardea herodias ). The great blue hero is a bit larger, and has a thick bill than that of the bang-up egret. [ 12 ]

distribution and habitat [edit ]

Adult sitting on a bridge in California The big egret is broadly a very successful species with a big and expanding compass, occurring global in moderate and tropical habitats. It is omnipresent across the Sun Belt of the United States and in the Neotropics. [ 1 ]

conservation [edit ]

In North America, big numbers of great egrets were killed around the end of the nineteenth hundred so that their plumes, known as “ aigrettes “, could be used to decorate hats. [ 13 ] [ 14 ] Numbers have since recovered as a result of conservation measures. Its range has expanded as far north as southerly Canada. however, in some parts of the southerly United States, its numbers have declined due to habitat loss, particularly wetland degradation through drain, browse, clear, burn off, increase salt, groundwater origin and invasion by alien plants. Nevertheless, the species adapts well to human habitation and can be promptly seen near wetlands and bodies of urine in urban and suburban areas. [ 1 ] The great egret is partially migratory, with northerly hemisphere birds moving south from areas with cold winters. It is one of the species to which the agreement on the Conservation of African-Eurasian Migratory Waterbirds ( AEWA ) applies. [ citation needed ]

In 1953, the great egret in escape was chosen as the symbol of the National Audubon Society, which was formed in part to prevent the kill of birds for their feathers. [ 15 ] [ 16 ] On 22 May 2012, a pair of great egrets was announced to be nesting in the UK for the first base prison term at the Shapwick Heath nature military reserve in Somerset. [ 17 ] The species was a rare visitor to the UK and Ben Aviss of the BBC stated that the news could mean the UK ‘s first capital egret colony had become established. [ 17 ] [ 18 ] The postdate week, Kevin Anderson of Natural England confirmed a great egret chick had hatched, making it a modern breeding bird record for the UK. [ 19 ] In 2017, seven nests in Somerset fledged 17 young, [ 20 ] and a second breeding site was announced at Holkham National Nature Reserve in Norfolk where a pair fledged three young. [ 21 ] In January 2021, Bird Guides, a UK web site and magazine which reports sightings of rare birds, dropped the species from its list of nationally rare birds because sightings had become sol numerous. [ 22 ] In 2018, a pair of great egrets nested in Finland for the first fourth dimension, raising four young in a grey hero colony in Porvoo. [ 23 ]

ecology [edit ]

The species breeds in colonies in trees close to big lakes with reed beds or early extensive wetlands, preferably at acme of 10–40 feet ( 3.0–12.2 meter ). [ 11 ] It begins to breed at 2–3 years of age by forming monogamous pairs each season. Whether the pairing carries over to the next temper is not known. The male selects the nest area, starts a cuddle, 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 blue green eggs are laid at one time. Both sex brood the eggs and the brooding period is 23–26 days. The young are fed by vomit by both parents and they are able to fly within 6–7 weeks. [ 24 ]

diet [edit ]

Spearing a fish The great egret forages in shallow body of water or in dry habitats, feeding chiefly on fish, frogs, small mammals, and occasionally small reptiles, crustaceans [ 25 ] and insects. This species normally impales its raven with its farseeing, crisp bill by standing hush and allowing the prey to come within the dramatic distance of its charge, which it uses as a spear. It often waits inactive for prey, or slowly stalks its victim .

Parasites [edit ]

A long-running field study ( 1962–2013 ) suggested that the great egrets of central Europe 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 adults. Of the digeneans found in cardinal european capital egrets, numerous species likely infected their definitive hosts outside of central Europe itself. [ 26 ]

In acculturation [edit ]

The great egret is depicted on the reverse english of a 5- brazilian reais bill. [ 27 ] The great egret is the symbol of the National Audubon Society. [ 28 ] An airbrush photograph of a great egret in breeding feather by Werner Krutein is featured in the cover artwork of the 1992 Faith No More album Angel Dust. [ 29 ] In Belarus, a commemorative coin has the persona of a bang-up egret. [ 30 ] The great egret besides features on the New Zealand $ 2 mint and on the hungarian 5-forint coin. [ 31 ]

gallery [edit ]

References [edit ]

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