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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis: Sarcopterygii
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
Cladus: 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: Euornithes
Cladus: Ornithuromorpha
Cladus: Ornithurae
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Ordo: Charadriiformes
Subordo: Lari
Familia: Laridae
Subfamilia: Sterninae
Genus: Thalasseus
Species: Thalasseus acuflavidus
Subspecies: T. a. acuflavidus – T. a. eurygnathus
Name
Thalasseus acuflavidus (Cabot, 1847)
Synonyms
Sterna acuflavida (protonym)
Sterna sandvicensis acuflavida
Thalasseus sandvicensis acuflavidus
References
Proceedings of the Boston Society of Natural History 2: 257.
Vernacular names
Deutsch: Amerikanische Brandseeschwalbe
English: Cabot's Tern
Esperanto: Amerika krestoŝterno
español: Charrán de Cabot
français: Sterne de Cabot
italiano: Beccapesci americano
Nederlands: Amerikaanse grote stern
português: Trinta-réis-de-bando
svenska: Cabots tärna
Cabot's tern (Thalasseus acuflavidus) is a tern in the family Laridae formerly considered as a subspecies of the Sandwich tern. It has since been shown to be more closely related to the elegant tern (Thalasseus elegans).[1] The genus name is from Ancient Greek Thalasseus, "fisherman" from thalassa, "sea". The specific acuflavida is Latin from acus, "needle", and flavidus, "yellowish".[2] The IOC recognizes the bird as distinct, but most other taxonomists, including both committees of the AOU, consider it conspecific with the Sandwich tern.[3]
The former species, T. s. eurygnatha (Saunders 1876), is sometimes treated as a separate species called the Cayenne tern (T. eurygnatha), which breeds on the Atlantic coast of South America from Argentina north to the Caribbean, intergrading with T. acuflavidus in the north of its range. The DNA analysis showed that Cayenne tern differed genetically from T. acuflavidus, but the difference was not sufficient to confirm it as a definite separate species.[4]
Distribution and subspecies
The species is widely distributed in the Americas.
There are two subspecies:
T. a. acuflavidus (Cabot, 1847) − eastern North America to southern Caribbean.
T. a. eurygnathus (Saunders, 1876) − Cayenne tern, islands off Venezuela and the Guianas, northern and eastern South America.
References
Gill, Frank; Donsker, David, eds. (2019). "Noddies, gulls, terns, auks". World Bird List Version 9.2. International Ornithologists' Union. Retrieved 24 June 2019.
Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 31, 383. ISBN 978-1-4081-2501-4.
"57th supplement of the AOU". American Ornithologists Union. Retrieved 2016-09-07.
Bridge, Eli S.; Jones, Andrew W.; Baker, Allan J. (2005). "A phylogenetic framework for the terns (Sternini) inferred from mtDNA sequences: implications for taxonomy and plumage evolution". Molecular Phylogenetics and Evolution. 35 (2): 459–469. doi:10.1016/j.ympev.2004.12.010. PMID 15804415.
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