- Larus michahellis
52–58 cm (20½-22¾ in)
- Grey back
- Black wing tips with few white spots
- Red spot on the bill
- Red eye-ring
- Dark bill and eyes
- Pinky-grey legs
- Blackish flight feathers
- Black band on the tail
- Almost adult plumage
- Retaining feather patterning on the wing coverts
- Black bill tips
- Dark eyes
- Pale yellow legs
ID discussion on how to distinguish Caspian (L. cachinnans) and Yellow-legged Gull (L. michahellis and L. m. atlantis).
Western birds (subspecies atlantis) has a darker mantle than more easterly birds.
Caspian Gull is included by some authorities in Yellow-legged Gull. The scientific name for the species would then be Larus cachinnans.
There are 2 subspecies:
- L. m. michahellis
- Breeds in the Mediterranean
- L. m. atlantis
- Breeds on Atlantic shores adjacent to the Mediterranean.
Fields and coasts.
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.
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.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of Birds of the World: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
- 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
- Sibley, CG and BL Monroe. 1996. Birds of the World, on diskette, Windows version 2.0. Charles G. Sibley, Santa Rosa, CA, USA.
- Handbook of the Birds of the World Alive (retrieved November 2015)
- BirdForum Opus contributors. (2023) Yellow-legged Gull. In: BirdForum, the forum for wild birds and birding. Retrieved 31 May 2023 from https://www.birdforum.net/opus/Yellow-legged_Gull
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