Snowy-crowned Tern Sterna trudeaui
(aka Trudeau's Tern)
Snowy-crowned Tern, Cassino, Rio Grande do Sul, Brazil, August 2004 - click for larger image

Brazil and Chile

The Snowy-crowned Tern is distributed round the southern part of South America from south-east Brazil round to Chile. It breeds both inland and near the coast in marshland. See the distribution map at xeno-canto.
Snowy-crowned Tern with Brown-hooded Gull, Cassino, Rio Grande do Sul, Brazil, August 2004 - click for larger image The head and neck are white and there is a black band running from behind the eye to just in front of the eye.
Snowy-crowned Tern, Lagoa do Peixe, Rio Grande do Sul, Brazil, August 2004 - click for larger image In breeding plumage, seen here in photos 4 and 5, the bill is yellow with a black sub-terminal band while in non-breeding plumage (photos 1, 2 and 3) the bill tends to be black with a yellow tip and varying amounts of dark red near the base. Legs are orange to red
Snowy-crowned Tern, Lago Villarica, Chile, November 2005 - click for larger image
Snowy-crowned Tern, Lago Villarica, Chile, November 2005 - click for larger image
Snowy-crowned Tern, Lagoa do Peixe, Rio Grande do Sul, Brazil, October 2022 - click for larger image
Snowy-crowned Tern, Lagoa do Peixe, Rio Grande do Sul, Brazil, October 2022 - click for larger image
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