Alternative name: Trudeau's Tern
- Sterna trudeaui
Distinctive medium sized white bodied tern with gray mantle. Crown white in all plumages. Ear patches black in breeding season, gray in non-breeding. Bill mostly yellow in breeding plumage but dark with a yellow tip in non-breeding.
Swamps, shallow seas, and intertidal marshes.
Plunge dives for fish. Breeding poorly known. Colonial, often in colonies of Brown-hooded Gulls. Builds an anchored floating nest.
- Clements, JF. 2011. The Clements Checklist of Birds of the World. 6th ed., with updates to August 2011. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
- Gochfeld, M., J. Burger, and E. F. J. Garcia (2020). Snowy-crowned Tern (Sterna trudeaui), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.truter.01
- BirdForum Opus contributors. (2023) Snowy-crowned Tern. In: BirdForum, the forum for wild birds and birding. Retrieved 1 December 2023 from https://www.birdforum.net/opus/Snowy-crowned_Tern
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