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: Sterna
Species: Sterna trudeaui
Name
Sterna trudeaui Audubon, 1838
References
The Birds of America; from original drawings 4: pl.409 fig.2.
Vernacular names
čeština: Rybák bělohlavý
Deutsch: Weißscheitel-Seeschwalbe
English: Snowy-crowned Tern
Esperanto: Blankkrona ŝterno
español: Charrán Coroniblanco
suomi: Rengasnokkatiira
français: Sterne de Trudeau
magyar: Fehérkoronás csér
português: Trinta-réis-de-coroa-branca
The snowy-crowned tern (Sterna trudeaui), also known as Trudeau's tern, is a species of tern in the family Laridae. It is found in Argentina, south-east Brazil, Chile, Paraguay and Uruguay, and as a vagrant in the Falkland Islands. The tern's natural habitats are swamps, shallow seas, and intertidal marshes. The species was first described by the American ornithologist John James Audubon in 1838. He had been sent a specimen by his friend Dr James de Berty Trudeau (1817–1887) of Louisiana, who had found several of the terns at Great Egg Harbor Bay, New Jersey. Audubon named the bird in his honour.[2]
Description
The adult snowy-crowned tern has a moderate-sized head and a slender body. It reaches a length of about 16 in (41 cm). The bill is slender, flattened, slightly down-curved and about the same length as the head. It is black with a yellow tip, a yellow edging to the mandibles and a yellow base to the lower mandible. The iris is brown. Around and behind the eye is a slatey-grey patch, the rest of the head being white. The upper-parts and underparts are light bluish-grey, apart from the axilliaries, rump and tail-coverts, which are white. The wings are long, slender and pointed, sometimes with a little black on the wing-tips, and the tail is deeply forked. The feet are orangish-yellow. The call is a series of rapid notes "je-je-je-je", or a harsh "jeeer".[2][3]
Distribution
Trudeau's tern is resident in the southern half of South America. It breeds in Uruguay, Brazil, Argentina and Chile and migrates in winter further north along the coast to Rio de Janeiro in the east and southern Peru in the west. It is a vagrant to the Falkland Islands and Paraguay,[1] and the birds Audubon described from New Jersey were far outside the normal range.
References
BirdLife International (2018). "Sterna trudeaui". IUCN Red List of Threatened Species. 2018: e.T22694651A132565263. doi:10.2305/IUCN.UK.2018-2.RLTS.T22694651A132565263.en. Retrieved 16 November 2021.
Audubon, John James (1844). The Birds of America. J.J. Audubon. pp. 105–106.
Schulenberg, Thomas S.; Stotz, Douglas F.; Lane, Daniel F.; O'Neill, John P.; Parker, Theodore A. III (2010). Birds of Peru. Princeton University Press. p. 154. ISBN 978-1-4008-3449-5.
Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License
