Larus thayeri

Taxonomy

Notes:

Name Status: Accepted Name. Latest taxonomic scrutiny: 17-Oct-2001

Physical Description

Family Laridae:

Medium to large birds, usually grey or white, often with black markings on the head or wings. They have stout, longish bills, and webbed feet.

Images:

Distribution

Range and Population

North America

Habitat

Vegetation: freshwater marshes, coastal waters, coastal sand beaches and mudflats • Minimum Elevation: 0 meters • Maximum Elevation: 0 meters • Sensitivity to Disturbance: Medium.

Diet

Mostly: Carrion Fish

Lesser Quantities of: Eggs Fruit

Reproduction

• Clutch Size: 2-3
• Number of Broods: 1

Migration

Migratory

Similar Species

Thayer's Gull, Glaucous Gull

Members of the genus Larus:

There are approximately 188 species and subspecies in this genus. Here are just 100 of them: L. africilla (Laughing Gull) · L. argentatus (Herring Gull) · L. argentatus antelius · L. argentatus argentatus (Herring Gull) · L. argentatus argenteus · L. argentatus atlantis · L. argentatus birulae · L. argentatus cachinnans · L. argentatus drosti · L. argentatus heuglini · L. argentatus hueglini · L. argentatus michahelis · L. argentatus michahelles · L. argentatus michahellis · L. argentatus mongolicus · L. argentatus omissus · L. argentatus smithsonianus · L. argentatus ssp · L. argentatus thayeri · L. argentatus vegae · L. armenicus (Armenian Gull) · L. atlanticus (Olrog's Gull) · L. atricilla (Laughing Gull) · L. atricilla atricilla · L. atricilla megalopterus · L. audouinii (Audouin's Gull) · L. belcheri (Band-Tailed Gull) · L. belcheri atlanticus · L. belcheri belcheri · L. borealis · L. brachyrhynchus · L. brachyrhynchus (Red-Legged Kittiwake) · L. bridgesii · L. brunneicephalus · L. brunnicephalus (Brown-Headed Gull) · L. bulleri (Black-Billed Gull) · L. byperboreus · L. cachin · L. cachinnans (Yellow-Legged Gull) · L. cachinnans atlantis · L. cachinnans barabensis · L. cachinnans cachinanns · L. cachinnans cachinnans · L. cachinnans michahellis · L. cachinnans mongolicus · L. californicus (California Gull) · L. californicus albertaensis · L. californicus californicus · L. californicus ssp · L. canus (Mew Gull) · L. canus brachyrhynchus (Mew Gull) · L. canus canus (Mew Gull) · L. canus heinei (Mew Gull) · L. canus kamtschatschensis · L. capistratus · L. cirrhocephalus · L. cirrhocephalus cirrhocephalus · L. cirrocephalus (Grey-Headed Gull) · L. cirrocephalus cirrocephalus · L. cirrocephalus poiocephalus · L. crassirostris (Black-Tailed Gull) · L. delawarenis · L. delawarensis (Ring-Billed Gull) · L. delewarensis · L. dominicanus (Kelp Gull) · L. dominicanus austrinus · L. dominicanus dominicanus · L. dominicanus melisandae · L. dominicanus vetula · L. dominicanus vetula (Ivory Gull) · L. eburneus · L. elegans · L. franklerii · L. fuliginosus (Lava Gull) · L. furcatus (Swallow-Tailed Gull) · L. fuscus (Lesser Black-Backed Gull) · L. fuscus antelius · L. fuscus britannicus · L. fuscus fuscus (Lesser Black-Backed Gull) · L. fuscus graellsi · L. fuscus graellsii (Lesser Black-Backed Gull) · L. fuscus heuglini · L. fuscus intermedius · L. gelastes · L. genei (Slender-Billed Gull) · L. glaucescens (Glaucous-Winged Gull) · L. glaucescens californicus · L. glaucescens hybrid · L. glaucescens occidentalis · L. glaucescens x · L. glaucoides (Iceland Gull) · L. glaucoides glaucoides (Iceland Gull) · L. glaucoides kumlieni (Iceland Gull) · L. glaucoides thayeri (Iceland Gull) · L. glaucus · L. haematorhynchus · L. hartlaubi · L. hartlaubii (King Gull) · L. heermanni (Heermann's Gull) · L. heermanni heermanni

Bibliography

• Alsop, Fred J. III. Birds of North America - Eastern Region. First American Edition. Smithsonian Handbooks. DK Publishing, Inc. 2001.
• Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada.
• Banks, R. C., R. W. McDiarmid, and A. L. Gardner 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. United States Department of the Interior Fish and Wildlife Service. Washington, D.C., USA. 79.
• Ehrlich, P., Dobkin, D., and Wheye, D. (1988). The Birders Handbook: A Field Guide to the Natural History of North American Birds. New York: Simon and Schuster Inc. (info on clutch size, length of incubation, days to fledge and number of broods.)
• Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc. (Length and wingspan info.)

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Notes

Contributors:

• Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
• Brands, S.J. (comp.) 1989-2006. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. Accessed April 21, 2007.
• Global Biodiversity Information Facility. Accessed February 29, 2008. http://www.gbif.org Mediated distribution data from 9 providers.
• Hines, J. E., Gregory Gough, J. R. Sauer, et al. USGS Patuxent Wildlife Research Center
• Parker III, T.A., D.F. Stotz, and J.W. Fitzpatrick, and quot;Ecological and Distributional Databases for Neotropical Birds, and quot; in Neotropical Birds: Ecology and Conservation, by D.F. Stotz, T.A. Parker III, J.W. Fitzpatrick, and D.K. Moskovits (Chicago: University of Chicago Press, 1996). ISBN 0-226-64676-9.
• Sauer, J. R., J. E. Hines, and J. Fallon. 2005. The North American Breeding Bird Survey, Results and Analysis 1966 - 2004. Version 2005.2. USGS Patuxent Wildlife Research Center, Laurel, MD
• Sauer, J. R., S. Schwartz, and B. Hoover. 1996. The Christmas Bird Count Home Page. Version 95.1. USGS Patuxent Wildlife Research Center, Laurel, MD

Data Sources:

Accessed through GBIF Data Portal February 29, 2008:

• Avian Knowledge Network: eBird
• Avian Knowledge Network: Great Backyard Bird Count
• Avian Knowledge Network: Macaulay Library - Video Data
• Avian Knowledge Network: Project FeederWatch
• Bernice Pauahi Bishop Museum: Bishop Museum Natural History Specimen Data
• Bird Studies Canada: BC Coastal Waterbird Survey
• Canadian Biodiversity Information Facility: North West Territories and Nunavut Bird Checklist, Canada
• Canadian Biodiversity Information Facility: Provincial Museum of Alberta, Edmonton, AB, Canada. Birds (Aves)
• Canadian Biodiversity Information Facility: Royal British Columbia Museum
• EMAN Provider: PIROP (Shipboard Surveys)
• Institute of Marine and Coastal Sciences, Rutgers University: SEAMAP - marine mammals, birds and turtles
• Museum of Vertebrate Zoology: Terrestrial vertebrate specimens
• Royal Ontario Museum: Bird specimens
• UCLA-Dickey Bird Collection (UCLA-Dickey): Bird specimens

Identifiers:

• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 176828
• Global Biodiversity Information Facility Taxonkey: 238224
• Natural Heritage Network Species Identifier: ABNNM03130
• Zipcode Zoo Species Identifier: 7578