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Yellow-legged Gull

From Opus

L. m. michahellis Photo by mikemik Strunjan, Slovenia.
L. m. michahellis
Photo by mikemik
Strunjan, Slovenia.
Larus michahellis

Contents

[edit] Identification

52–58 cm (20½-22¾ in)
Adult

  • Grey back
  • Black wing tips with few white spots
  • Red spot on the bill
  • Red eye-ring
L. m. atlantis Photo by Robert L Jarvis Lanzarote, December 2010.
L. m. atlantis
Photo by Robert L Jarvis
Lanzarote, December 2010.

First-year

  • Dark bill and eyes
  • Pinky-grey legs
  • Blackish flight feathers
  • Black band on the tail

Second winter

  • Almost adult plumage
  • Retaining feather patterning on the wing coverts
  • Black bill tips
  • Dark eyes
  • Pale yellow legs

[edit] Similar Species

ID discussion on how to distinguish Caspian (L. cachinnans) and Yellow-legged Gull (L. michahellis and L. m. atlantis).

[edit] Variation

Western birds (subspecies atlantis) has a darker mantle than more easterly birds.

[edit] Distribution

JuvenilePhoto by Cristian MihaiAgigea, Constanta, Romania, August 2011
Juvenile
Photo by Cristian Mihai
Agigea, Constanta, Romania, August 2011

Europe and North Africa.

[edit] Taxonomy

Caspian Gull is included by some authorities in Yellow-legged Gull. The scientific name for the species would then be Larus cachinnans.

[edit] Subspecies

There are 2 subspecies[1]: Subspecies of the Yellow-legged Gull:

  • L. m. michahellis
  • Breeds in the Mediterranean
  • L. m. atlantis
  • Breeds on Atlantic shores adjacent to the Mediterranean.

[edit] Habitat

Fields and coasts.

[edit] Behaviour

[edit] Diet

They are scavengers and also rob other birds of their catches. Their varied diet consists of fish, invertebrates, mammals, rodents, birds eggs and chicks. Also refuse and offal.

[edit] Breeding

They breed in colonies. The nest is a mound of vegetation built on the ground or on cliff ledges. The clutch consists of 3 eggs which are incubated for 27-31 days; the young fledge after 35-40 days.

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2015. The eBird/Clements checklist of birds of the world: v2015, with updates to August 2015. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Dickinson, EC, ed. 2003. The Howard and Moore Complete Checklist of the Birds of the World. 3rd ed., with updates to October 2008 (Corrigenda 8). Princeton: Princeton Univ. Press. ISBN 978-0691117010
  3. Sibley, CG and BL Monroe. 1996. Birds of the World, on diskette, Windows version 2.0. Charles G. Sibley, Santa Rosa, CA, USA.
  4. Handbook of the Birds of the World Alive (retrieved November 2015)

[edit] External Links


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