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• Conservation Status
• Taxonomy
• Physical Description
• Distribution
• Migration
• Similar Species
• Bibliography
• More Info
• Notes
• Keep Exploring

Overview:

Conservation Status

History:

• 1988-Lower Risk/least concern (BirdLife International 2004)
• 1994-Lower Risk/least concern (BirdLife International 2004)
• 2000-Lower Risk/least concern (BirdLife International 2000)

Justification

This species has a large range, with an estimated global extent of occurrence of 1,000,000¿10,000,000 km². It has a large global population estimated to be 130,000¿210,000 individuals (Wetlands International 2002). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.

Taxonomy

Notes:

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

Physical Description

Family Anatidae:

Birds that are modified for swimming, floating on the water surface, and in some cases diving in at least shallow water. They have webbed feet and flattened bills. Special oils in their feathers helps them shed water. This is one of the few families of birds that possess a penis.

Distribution

Range and Population

North America

Migration

Migratory

Similar Species

Long-Tailed Duck, Hooded Merganser, Common Merganser, Red-Breasted Merganser

Members of the genus Mergellus:

There are approximately 1 species and subspecies in this genus: M. albellus (Smew)

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.
• BirdLife International. 2000. Threatened Birds of the World. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, U.K.

More Info

• Search for Pictures: images.google.com
• Search for Scholarly Articles: Google Scholar
• Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
• Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CA L | Agricola Periodicals | Agricola Books
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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.
• Global Biodiversity Information Facility. Accessed December 06, 2007. http://www.gbif.org Mediated distribution data from 5 providers.

Data Sources:

Accessed through GBIF Data Portal December 06, 2007:

• Avian Knowledge Network, Great Backyard Bird Count
• Avian Knowledge Network, eBird
• Museum of Vertebrate Zoology, Terrestrial vertebrate specimens
• Upper Silesian Museum, Bytom, Upper Silesian Museum, Bird Observations

Identifiers:

• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 175196
• Global Biodiversity Information Facility Taxonkey: 13853175
• Natural Heritage Network Species Identifier: ABNJB19010
• Zipcode Zoo Species Identifier: 13356