Sternula albifrons , Photo: Michael Lahanas
Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Subordo: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Ordo: Charadriiformes
Subordo: Lari
Familia: Laridae
Subfamilia: Sterninae
Genus: Sternula
Species: Sternula albifrons
Subspecies: S. a. albifrons – S. a. guineae – S. a. sinensis
Name
Sternula albifrons (Pallas, 1764)
Synonymy
Sterna albifrons (protonym)
References
Catalogue raisonne, d'une Collection supérieurement belle d'Oiseaux: 6 N.271.
Vernacular names
azərbaycanca: Kiçik susüpürən
беларуская: Крачка малая
български: Белочела рибарка
brezhoneg: Skravig c'hwiton
català: Xatrac menut
čeština: Rybák malý
Deutsch: Zwergseeschwalbe
Ελληνικά: Νανογλάρονο (Ευρωπαϊκό)
English: Little Tern
Esperanto: Malgranda ŝterno
español: Carrancito Común
eesti: Väiketiir
euskara: Txenada txiki
suomi: Pikkutiira
føroyskt: Fruntaterna
Nordfriisk: Stäärnk
français: Sterne naine
hrvatski: Mala čigra
magyar: Kis csér
հայերեն: Ջրածիծառ փոքր
italiano: Fraticello
日本語: コアジサシ
한국어: 쇠제비갈매기
lietuvių: Mažoji žuvėdra
Bahasa Melayu: Burung Camar Kecil
Nederlands: Dwergstern
norsk: Dvergterne
polski: Rybitwa białoczelna
پنجابی: نکا ٹرن
português: Andorinha-do-mar-anã
русский: Малая крачка
slovenčina: Rybár malý
svenska: Småtärna
ไทย: นกนางนวลแกลบเล็ก
Türkçe: Küçük sumru
українська: Крячок малий
中文: 白额燕鸥
The little tern (Sternula albifrons) is a seabird of the family Laridae. It was formerly placed into the genus Sterna, which now is restricted to the large white terns.[2] The genus name is a diminutive of Sterna, "tern". The specific albifrons is from Latin albus, "white", and "frons", forehead.[3] The former North American (S. a. antillarum) and Red Sea S. a. saundersi subspecies are now considered to be separate species, the least tern (Sternula antillarum) and Saunders's tern (Sternula saundersi).
This bird breeds on the coasts and inland waterways of temperate and tropical Europe and Asia. It is strongly migratory, wintering in the subtropical and tropical oceans as far south as South Africa and Australia.
There are three subspecies, the nominate albifrons occurring in Europe to North Africa and western Asia; guineae of western and central Africa; and sinensis of East Asia (SE Russia to Japan, SE Asia, Philippines) and the north and east coasts of Australia and New Guinea[4]
S.a. albifrons Cadiz, Spain
several S. a. sinensis in non-breeding plumage behind a pair of greater crested terns (note size difference)
The little tern breeds in colonies on gravel or shingle coasts and islands. It lays two to four eggs on the ground. Like all white terns, it is defensive of its nest and young and will attack intruders.
Like most other white terns, the little tern feeds by plunge-diving for fish, usually from saline environments. The offering of fish by the male to the female is part of the courtship display.
This is a small tern, 21–25 cm long with a 41–47 cm wingspan. It is not likely to be confused with other species, apart from fairy tern and Saunders's tern, because of its size and white forehead in breeding plumage. Its thin sharp bill is yellow with a black tip and its legs are also yellow. In winter, the forehead is more extensively white, the bill is black and the legs duller. The call is a loud and distinctive creaking noise.
The little tern was described by the German naturalist Peter Simon Pallas in 1764 and given the binomial name Sterna albifrons.[5][6][7]
Populations on European rivers
Egg, Collection Museum Wiesbaden
At the beginning of the 19th century the little tern was a common bird of European shores, rivers and wetlands, but in the 20th century populations of coastal areas decreased because of habitat loss, pollution and human disturbance.
The loss of inland populations has been even more severe, since due to dams, river regulation and sediment extraction it has lost most of its former habitats. The Little Tern population has declined or become extinct in many European countries, and former breeding places on large rivers like the Danube, Elbe and Rhine ceased. Nowadays, only few river systems in Europe possess suitable habitats; the Loire/Allier in France,the Vistula/Odra in Poland, the Po/Ticino in Italy, the Daugava in Latvia, the Nemunas in Lithuania, the Sava in Croatia and the Drava in Hungary and Croatia. The status of the little tern on the rivers Tagus and lower Danube is uncertain.
The Drava population is one of the most threatened. Old fashioned water management practices, including river regulation and sediment extraction, endanger the remaining pairs. Only 15 pairs still breed on extensive sand or gravel banks along the border between Hungary and Croatia. The WWF and its partners are involved in working for the protection of this bird and this unique European river ecosystem. The little tern is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.
References
BirdLife International (2019). "Sternula albifrons". IUCN Red List of Threatened Species. 2019: e.T22694656A155476219. doi:10.2305/IUCN.UK.2018-2.RLTS.T22694656A155476219.en. Retrieved 19 November 2021.
Bridge, E. S.; Jones, A. W.; Baker, A. J. (2005). "A phylogenetic framework for the terns (Sternini) inferred from mtDNA sequences: implications for taxonomy and plumage evolution" (PDF). Molecular Phylogenetics and Evolution. 35: 459–469. Archived from the original (PDF) on 20 July 2006.
Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 38, 365. ISBN 978-1-4081-2501-4.
Higgins, P.J. & S.J.J.F. Davies (eds) 1996. Handbook of Australian, New Zealand and Antarctic Birds. Volume 3: Snipe to Pigeons. Oxford University Press, Melbourne. ISBN 0-19-553070-5
Peters, James Lee (1934). Check-list of Birds of the World. Volume 2. Vol. 2. Cambridge, Massachusetts: Harvard University Press. p. 340.
Sherborn, C. Davies (1905). "The new species of birds in Vroeg's catalogue, 1764". Smithsonian Miscellaneous Collections. 47: 332–341 [339]. Includes a transcript of the 1764 text.
Rookmaaker, L.C.; Pieters, F.F.J.M. (2000). "Birds in the sales catalogue of Adriaan Vroeg (1764) described by Pallas and Vosmaer". Contributions to Zoology. 69 (4): 271–277. doi:10.1163/18759866-06904005.
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