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Halcyon leucocephala ( Statius Müller , 1776) The grey-headed kingfisher ( Halcyon leucocephala ) is a species of kingfisher that has a wide distribution from the Cape Verde Islands off the north-west coast of Africa to Mauritania , Senegal and Gambia , east to Ethiopia , Somalia and southern Arabia and south to South Africa .
The white-throated kingfisher (Halcyon smyrnensis) also known as the white-breasted kingfisher is a tree kingfisher, widely distributed in Asia from the Sinai east through the Indian subcontinent to China and Indonesia. This kingfisher is a resident over much of its range, although some populations may make short distance movements.
The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta
The brown-breasted kingfisher (Halcyon gularis) is a tree kingfisher endemic to the Philippines, where it is widely distributed. This kingfisher is a resident over much of its range. [ 1 ]
According to the International Union for Conservation of Nature (IUCN), 77 bird species in the United States are threatened with extinction. [1] The IUCN has classified each of these species into one of three conservation statuses: vulnerable VU, endangered EN, and critically endangered CR (v. 2013.2, the data is current as of March 5, 2014 [1]).
The Red List Index (sampled approach) (SRLI) has been developed in order to determine the threat status and also trends of lesser-known and less charismatic species groups. It is a collaboration between IUCN members and is coordinated through the Institute of Zoology (IoZ), the research division of the Zoological Society of London (ZSL).
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The current genus Halcyon was introduced by the English naturalist and artist William Swainson in 1821, with the woodland kingfisher as the type species. [4] Three subspecies are recognised: [5] H. s. fuscopileus Reichenow, 1906 – Sierra Leone to south Nigeria and south to DR Congo and north Angola