CreatureData

Snowy-crowned tern

Sterna trudeaui Audubon, 1838

LCLeast Concernbirds

The snowy-crowned tern (Sterna trudeaui) is a species in the family Laridae, order Charadriiformes. Recorded adults weigh about 153 g. Its IUCN Red List status is Least Concern.

Snowy-crowned tern (Sterna trudeaui)
Photo: Cláudio Dias Timm from Rio Grande do Sul · CC BY-SA 2.0 · Wikimedia Commons

Quick facts about the snowy-crowned tern

Weight
153 gsrc for Weight
Length
Not recorded
Wingspan
76 cm – 78 cmsrc for Wingspan
Lifespan
Not recorded
Diet
Aquatic predatorsrc for Diet
Main food
Not recorded
Habitat
wetlandsrc for Habitat
Young per litter or clutch
3 – 3.25src for Young per litter or clutch
Lifestyle
Aerialsrc for Lifestyle
Migration
Partialsrc for Migration
Conservation status
Least Concern (IUCN)src for Conservation status
Countries on record
Not recorded

How big is the snowy-crowned tern?

SNOWY-CROWNED TERN · WINGSPAN 78 CMADULT HUMAN · HEIGHT 1.7 M
At 78 cm, the recorded maximum wingspan of the snowy-crowned tern is about 46% of the height of an adult human (1.7 m, a fixed reference used for scale).

Photos of the snowy-crowned tern

Only freely licensed photos are shown. Each carries its creator and licence.

Snowy-crowned tern (Sterna trudeaui)
Cláudio Dias Timm from Rio Grande do Sul · CC BY-SA 2.0 · Wikimedia Commons

Where does the snowy-crowned tern live?

Not recorded

What is the snowy-crowned tern?

Quoted from WikipediaCC BY-SA 4.0

The snowy-crowned tern (Sterna trudeaui), also known as Trudeau's tern, is a species of bird in subfamily Sterninae of the family Laridae, the gulls, terns, and skimmers. It is native to Argentina, Brazil, Chile, Uruguay, and possibly Paraguay, and also vagrant in Peru and the Falkland Islands.

From the Wikipedia article “Snowy-crowned tern” (en.wikipedia.org/w/index.php?title=Snowy-crowned_tern&oldid=1315362122), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.

Is the snowy-crowned tern endangered?

The snowy-crowned tern is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.

  1. LCLeast Concern
  2. NTNear Threatened
  3. VUVulnerable
  4. ENEndangered
  5. CRCritically Endangered
  6. EWExtinct in the Wild
  7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.

How is the snowy-crowned tern classified?

  1. kingdomAnimalia
  2. phylumChordata
  3. classAves
  4. orderCharadriiformes
  5. familyLaridae
  6. genusSterna
  7. SpeciesSterna trudeaui Audubon, 1838
Other names and names in other languages (39)
  • Trudeau's ternEnglish
  • خرشنة ثلجية التاجArabic
  • Белоглава рибаркаBulgarian
  • xatrac de TrudeauCatalan
  • rybák bělohlavýCzech
  • môr-wennol TrudeauWelsh
  • Hvidkronet TerneDanish
  • WeißscheitelseeschwalbeGerman
  • Weißscheitel-SeeschwalbeGerman
  • Blankkrona ŝternoEsperanto
  • blankakrona ŝternoEsperanto
  • Charrán coroniblancoSpanish
  • Gaviotín de antifazSpanish
  • Gaviotín laguneroSpanish
  • Gaviotín piqueritoSpanish
  • pampatiirEstonian
  • rengasnokkatiiraFinnish
  • Sterne de TrudeauFrench
  • crnolica čigraCroatian
  • fehérkoronás csérHungarian
  • Sterna caponiveoItalian
  • Sterna di TrudeauItalian
  • シロガシラアジサシJapanese
  • baltavainikė žuvėdraLithuanian
  • Trudeau-sternDutch
  • Trudeaus SternDutch
  • svartøreterneNorwegian
  • rybitwa maskowaPolish
  • trinta-réis-de-coroa-brancaPortuguese
  • andorinha-do-mar-de-coroa-brancaPortuguese
  • Крачка ТрюдоRussian
  • Белоголовая крачкаRussian
  • rybár bielohlavýSlovak
  • Belokapa čigraSerbian
  • vitkronad tärnaSwedish
  • Ak Tepeli SumruTurkish
  • крячок білоголовийUkrainian
  • 白頂燕鷗Chinese
  • 白顶燕鸥Chinese

Catalogue of LifeWikipediaiNaturalistWikidataWoRMSIUCN Red List

Relatives of the snowy-crowned tern

Other species in the same genus Sterna.

CompareSnowy-crowned tern vs Common ternSnowy-crowned tern vs Arctic ternSnowy-crowned tern vs Roseate ternSnowy-crowned tern vs River tern

Common questions

Answered only where our data holds the answer.

How big is the snowy-crowned tern?

An adult snowy-crowned tern weighs 153 g and has a wingspan of 76 cm – 78 cm, according to values recorded on Wikidata.

Is the snowy-crowned tern endangered?

The snowy-crowned tern is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.

What kind of animal is the snowy-crowned tern?

The snowy-crowned tern (Sterna trudeaui) belongs to the family Laridae in the order Charadriiformes.

Sources and how to cite this page

Data as of 2026-11-11. How this page is put together.

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APA

CreatureData. (2026). Snowy-crowned tern (Sterna trudeaui). Retrieved from https://creaturedata.com/animals/snowy-crowned-tern

MLA

“Snowy-crowned tern (Sterna trudeaui).” CreatureData, 2026, https://creaturedata.com/animals/snowy-crowned-tern.

BibTeX
@misc{snowy_crowned_tern_2026,
  title = {Snowy-crowned tern (Sterna trudeaui)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/snowy-crowned-tern},
  note = {Data as of 2026-11-11}
}