Chlidonias niger (*)
Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Subsectio: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Cladus: Theropoda
Cladus: Neotheropoda
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Euornithes
Cladus: Ornithuromorpha
Cladus: Ornithurae
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Ordo: Charadriiformes
Subordo: Lari
Familia: Laridae
Subfamilia: Sterninae
Genus: Chlidonias
Species: Chlidonias niger
Subspecies: C. n. niger – C. n. surinamensis
Name
Chlidonias niger (Linnaeus, 1758)
Synonymy
Sterna nigra (protonym)
References
Linnaeus, C. 1758. Systema Naturae per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Tomus I. Editio decima, reformata. Holmiæ: impensis direct. Laurentii Salvii. i–ii, 1–824 pp DOI: 10.5962/bhl.title.542: 137. Reference page.
Vernacular names
Afrikaans: Swartmeerswael
العربية: خطاف أسود
asturianu: Garrochín Prietu
azərbaycanca: Qara sterna
беларуская: Чорная рыбачка
български: Черна рибарка
brezhoneg: Stêrwennel zu
català: Fumarell negre
čeština: Rybák černý
Cymraeg: Corswennol ddu
dansk: Sortterne
Deutsch: Trauerseeschwalbe
Ελληνικά: Μαυρογλάρονο
English: Black Tern
Esperanto: Nigra ŝterno
español: Fumarel común
eesti: Mustviires
euskara: Itsas enara beltz
suomi: Mustatiira
føroyskt: Svartterna
Nordfriisk: Blä baker
français: Guifette noire
Frysk: Blaustirns
Gaeilge: Geabhróg Dhubh
galego: Carrán mouro
Gaelg: Gant doo
עברית: מרומית שחורה
hrvatski: Crna Čigra
Kreyòl ayisyen: Mòv nwa
magyar: Kormos szerkő
հայերեն: Ջրածիծառ սև
íslenska: Kolþerna
italiano: Mignattino
日本語: ハシグロクロハラアジサシ
ქართული: შანი თევზიყლაპია
қазақша: Қара қарқылдақ
한국어: 검은제비갈매기
lietuvių: Juodoji žuvėdra
latviešu: Melnais zīriņš
македонски: Рибарска вртимушка
монгол: Хилэн хараалай
Malti: Ċirlewwa Sewda
Nederlands: Zwarte stern
norsk: Svartterne
polski: Rybitwa czarna
پنجابی: کالی ٹرن
português do Brasil: Trinta-réis-negro
português: Gaivina-preta
rumantsch: Pestgarel nair
русский: Чёрная болотная крачка
sardu: Caixedda
slovenčina: Čorík čierny
slovenščina: Crna čigra
shqip: Dallëndyshe deti zezë
српски / srpski: Crna čigra - Црна чигра
svenska: Svarttärna
Türkçe: Kara sumru
українська: Крячок чорний
中文: 黑浮鸥
The black tern (Chlidonias niger) is a small tern generally found in or near inland water in Europe, Western Asia and North America. As its name suggests, it has predominantly dark plumage. In some lights it can appear blue in the breeding season, hence the old English name "blue darr".[2] The genus name is from Ancient Greek khelidonios, "swallow-like", from khelidon, "swallow": another old English name for the black tern is "carr (i.e. lake) swallow".[3] The species name is from Latin niger "shining black".[4]
Description
ID composite
Adults are 25 cm (9.8 in) long, with a wingspan 61 cm (24 in), and weigh 62 g (2.2 oz). They have short dark legs and a short, weak-looking black bill, measuring 27 mm (1.1 in), nearly as long as the head. The bill is long, slender, and looks slightly decurved. They have a dark grey back, with a white forewing, black head, neck (occasionally suffused with grey in the adult) and belly, black or blackish-brown cap (which unites in color with the ear coverts, forming an almost complete hood), and a light brownish-grey, 'square' tail. The face is white. There is a big dark triangular patch in front of the eye, and a broadish white collar in juveniles. There are greyish-brown smudges on the ides of the white breast, a downwards extension of the plumage of the upperparts. These marks vary in size and are not conspicuous. In non-breeding plumage, most of the black, apart from the cap, is replaced by grey. The plumage of the upperparts is drab, with pale feather-edgings. The rump is brownish-grey.
The North American race, C. n. surinamensis, is distinguishable from the European form in all plumages, and is considered by some to be a separate species.
In flight, the build appears slim. The wing-beats are full and dynamic, and flight is often erratic as it dives to the surface for food; similar to other tern species.
Its call has been described as a high-pitched "kik"; the sound of a large flock has been called "deafening".
Hybridisation with white-winged black tern
Hybridisation between this species and white-winged black tern has been recorded from Sweden[5] and the Netherlands.[6] Two juvenile birds at Chew Valley Lake, England, in September 1978 and September 1981, were also believed to be hybrids; they showed mixed characters of the two species, specifically a combination of a dark mantle (a feature of white-winged black) with dark patches on the breast-side (a feature of black tern, not shown by white-winged black).[7][8]
Distribution and habitat
Their breeding habitat is freshwater marshes across most of Canada, the northern United States and much of Europe and western Asia. They usually nest either on floating material in a marsh or on the ground very close to water, laying 2–4 eggs.
In England the black tern was abundant in the eastern Fens, especially in Lincolnshire and Cambridgeshire, until the early nineteenth century. The English naturalist Thomas Pennant in 1769 referred to "vast flocks" of black terns "whose calls are almost deafening." Extensive drainage of its breeding grounds wiped out the English population by about 1840. Intermittent attempts by the black tern to recolonise England have proved unsuccessful, with only a handful of English breeding records, and one in Ireland, in the second half of the twentieth century.
North American black terns migrate to the coasts of northern South America, some to the open ocean. Old World birds winter in Africa.
Unlike the "white" Sterna terns, these birds do not dive for fish, but forage on the wing picking up items at or near the water's surface or catching insects in flight. They mainly eat insects and fish as well as amphibians.
Vagrancy
The American race has occurred as a vagrant in Britain[9][10] and in Ireland.[11][12][13]
Conservation
The North American population has declined in recent times due to loss of habitat.
The black tern is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.
Gallery
Nonbreeding
Eclipse breeding
Black terns mating in Tartu County, Estonia
Egg, Collection Museum Wiesbaden, Germany
A newly hatched chick and two eggs on a nest made of floating reeds, in Ontario, Canada
Chlidonias niger niger - MHNT
References
BirdLife International (2019). "Chlidonias niger". IUCN Red List of Threatened Species. 2019: e.T22694787A155491450. doi:10.2305/IUCN.UK.2018-2.RLTS.T22694787A155491450.en. Retrieved 13 November 2021.
Cocker, Mark and Mabey, Richard Birds Britannica Chatto and Windus London 2005 p.250
Cocker and Mabey Birds Britannica p.250
Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 102, 270. ISBN 978-1-4081-2501-4.
(in Swedish) Alexandersson, H. (1979) En hybridisering mellan vitvingad tärna Chlidonias leucopterus och svarttärna Chlidonias niger på Öland 1978 Calidris 8: 151-53
(in Dutch) Van IJzendoorn, E. J. (1980) Broedgeval van Zwarte Chlidonias niger × Witvleugelstern C. leucopterus Dutch Birding 2: 62-65
Vinicombe, Keith (1980) Tern showing mixed characters of Black Tern and White-winged Black Tern British Birds 73(5): 223-25
Davis, A. H. (1980) Tern showing mixed characters of Black and White-winged Black Tern British Birds 75(12): 579-80
Andrews, Richard, Rupert Higgins and John Martin (1999) The American Black Tern in Avon Birding World 12(10): 416-18 (an account of the first British record)
Andrews, R. M., R. J. Higgins and J. P. Martin (2006) American Black Tern at Weston-super-Mare: new to Britain British Birds 99(9): 450-59
Adriaens, Peter (1999) The American Black Tern in County Dublin Birding World 12(9): 378-79
Bradshaw, Colin (2003) The American Black Tern in County Kerry Birding World 16(10): 434
Mullarney, Killian (2003) The American Black Tern in Co. Wexford Birding World 19(7): 279-82
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