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Grey-backed Tern - BirdForum Opus

Alternative name: Spectacled Tern

Onychoprion lunatus

Sterna lunata

Identification

38 cm (15)

  • Grey upperparts and upper wings
  • White forehead

Distribution

Islands in tropical Pacific Ocean

Taxonomy

This is a monotypic species[1].

Sooty Tern, Bridled Tern, Grey-backed Tern and Aleutian Tern are each others' closest relatives; all four were included in the genus Sterna in the past.

Habitat

They breed on low sea cliffs or sandy beaches.

Behaviour

Diet

Their main diet consists of small fish, including flying fish. They also will take small lizards.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9., with updates to August 2014. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. Handbook of the Birds of the World Alive (retrieved June 2015)

Recommended Citation

External Links

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