Terns (Sternidae)
Large-billed Tern (Phaetusa simplex) - HBW 3, p. 664
French: Sterne à gros bec
German: Großschnabel-Seeschwalbe
Spanish: Charrán Picudo
Taxonomy: Sterna simplex Gmelin, 1789, Cayenne.
Morphometric analysis does not provide clear evidence of relationship to other terns or gulls, but apparently most similar to Thalasseus. Two subspecies recognized.
Subspecies and Distribution:
- simplex (Gmelin, 1789) - E Colombia E to Trinidad, and S through Amazonia; W Ecuador.
- chloropoda (Vieillot, 1819) - basins of R Paraguay and R Paraná SW to NC Argentina (Santiago del Estero, very rarely Cordoba); non-breeding visitor to Uruguay.
- Least Concern Enlarge map
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A bird in winter plumage perched on a branch. Locality Yurimaguas, Loreto Department, Peru (ssp chloropoda)
Yoel Jimenez 8 December 2012 13 weeks ago 31 sec 4.5 -
A bird looking around from a pole in the Suriname River, next to Paramaribo. Locality Paramaribo, Paramaribo District, Suriname (ssp simplex)
Pieter de Groot Boersma 10 July 2011 1 year ago 25 sec 4.3 -
A bird on the edge of the river trying to swallow a fish, without success. Locality Fazenda Praia Alta, Tocantins State, Brazil (ssp simplex)
Josep del Hoyo 4 August 2011 1 year ago 20 sec 4.1 -
A bird flying over the water, looking for fish Locality Orinoco River, Delta Amacuro, Venezuela (ssp simplex)
Peter Nash 10 November 2005 7 years ago 51 sec 4 -
An individual flying Locality Pantanal, Mato Grosso State, Brazil (ssp simplex)
Josep del Hoyo 14 June 2001 10 years ago 17 sec 4 -
A bird drinking while flying and then hovering a short time. Locality Fazenda Praia Alta, Tocantins State, Brazil (ssp simplex)
Josep del Hoyo 4 August 2011 1 year ago 23 sec 3.8
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A bird in a dead trunk on the river.
Locality Embiara Lodge, Nhecolândia, Pantanal, Mato Grosso do Sul State, Brazil (ssp simplex)
Carmelo López 12 November 2011 1 year ago 4.3 -
Adult in breeding plumage flying.
Locality Delta Amacuro, Venezuela (ssp simplex)
Christophe Gouraud 5 April 2012 35 weeks ago 4 -
Juvenile individual showing one wing seen from above and the other one from behind. To note white color on forehead and head and
Locality Barlovento, Miranda State, Venezuela (ssp simplex)
Eduardo López 30 September 2007 4 years ago 4 -
adult
Locality Vera, Santa Fe Province, Argentina (ssp chloropoda)
Horacio Luna 30 March 2013 7 weeks ago 3.9 -
A bird on the bank of river
Locality Passo do Lontra, Pantanal, Mato Grosso do Sul State, Brazil
Tadeusz Stawarczyk 9 August 2010 1 year ago 3.7 -
Adult male showing breeding plumage.
Locality Barlovento, Miranda State, Venezuela (ssp simplex)
Eduardo López 30 September 2007 4 years ago 3.6
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Bird singing on the beach of Rio Negro. Locality Fazenda Barra Mansa, Nhecolândia, Pantanal, Mato Grosso do Sul State, Brazil
Antonio Silveira 9 May 2005 49 weeks ago 5 -
Calls by several birds. Locality Fazenda Praia Alta, Tocantins State, Brazil
(ssp simplex)
Josep del Hoyo 4 August 2011 1 year ago 4.5 -
Calls in flight. Locality Tocantins State, Brazil
(Monotypic species)
Ciro Albano 5 July 2008 4 years ago 4
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