- Chroicocephalus serranus
Larus serranus
Identification
44–48 cm (17¼-19 in)
Adult Breeding
- Black hood
- White rear eye crescents
Adult Non-breeding
- Hood recedes to leave a blackish ear spot
Distribution
South America: found in the Andean lakes of Ecuador to northern Argentina and central Chile
Taxonomy
This is a monotypic species[1].
Some authorities still consider it a part of genus Larus.
Habitat
Coasts, rivers, freshwater mountain lakes to at least 4600m, saline marshes, and pastures and plowed fields.
Behaviour
They can be found in big groups on most of the lakes in the high Andes.
Diet
Their varied diet consists of insects, worms, small fish, amphibians and sometimes eggs.
Breeding
They generally breed in July and August. They nest communally.
References
- 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/
- Arthur Grosset
- Handbook of the Birds of the World Alive (retrieved April 2016)
- Wikipedia
- BF Member observations
Recommended Citation
- BirdForum Opus contributors. (2025) Andean Gull. In: BirdForum, the forum for wild birds and birding. Retrieved 11 May 2025 from https://www.birdforum.net/opus/Andean_Gull
External Links
GSearch checked for 2020 platform.
