Animalia > Chordata > Aves > Charadriiformes > Laridae > Sterna > Sterna trudeaui

Sterna trudeaui (Snowy-crowned Tern)

Wikipedia Abstract

The snowy-crowned tern or Trudeau's tern (Sterna trudeaui) is a species of tern in the family Sternidae.It is found in Argentina, south-east Brazil, Chile, Paraguay and Uruguay, and as a vagrant in the Falkland Islands.The tern's natural habitats are swamps, shallow seas, and intertidal marshes. The species was first described by the American ornithologist John James Audubon in 1838. He had been sent a specimen by his friend Dr James de Berty Trudeau (1817–1887) of Louisiana, who had found several of the terns at Great Egg Harbor Bay, New Jersey. Audubon named the bird in his honour.
View Wikipedia Record: Sterna trudeaui

EDGE Analysis

Uniqueness Scale: Similiar (0) 
1
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
14
 Unique & Vulnerable (100)
ED Score: 4.53034
EDGE Score: 1.71025
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  153 grams
Diet [2]  Carnivore (Invertebrates), Piscivore
Diet - Fish [2]  70 %
Diet - Invertibrates [2]  30 %
Forages - Underwater [2]  100 %
Clutch Size [3]  3
Wing Span [1]  30 inches (.77 m)

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Espinal Argentina Neotropic Temperate Grasslands, Savannas, and Shrublands
Humid Pampas Argentina Neotropic Temperate Grasslands, Savannas, and Shrublands
Serra do Mar coastal forests Brazil Neotropic Tropical and Subtropical Moist Broadleaf Forests  
Uruguayan savanna Uruguay, Brazil, Argentina Neotropic Tropical and Subtropical Grasslands, Savannas, and Shrublands
Valdivian temperate forests Chile, Argentina Neotropic Temperate Broadleaf and Mixed Forests

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
Atlantic Forest Argentina, Brazil, Paraguay, Uruguay No
Chilean Winter Rainfall-Valdivian Forests Chile No

Prey / Diet

Odontesthes regia (Silverside)[1]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Leucocarbo bougainvillii (Guanay cormorant)1
Spheniscus humboldti (Humboldt Penguin)1
Sula variegata (Peruvian Booby)1

Range Map

External References

Citations

Attributes / relations provided by
♦ 1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 2Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 3Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0