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Bucephala albeola

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES ANSERIFORMES ANATIDAE

Scientific Name: Bucephala albeola
Species Authority: (Linnaeus, 1758)
Common Name/s:
English – Bufflehead

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Assessor/s: BirdLife International
Reviewer/s: Butchart, S. & Symes, A.
Contributor/s:
Justification:
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
History:
2009 – Least Concern
2008 – Least Concern
2004 – Least Concern

Geographic Range [top]

Countries:
Native:
Bermuda; Canada; Cayman Islands; Cuba; Mexico; Puerto Rico; Saint Pierre and Miquelon; United States
Vagrant:
Bahamas; Finland; France; Greenland; Iceland; Jamaica; Japan; Netherlands; Portugal; Russian Federation; Slovakia; Spain; United Kingdom; Virgin Islands, U.S.
Present - origin uncertain:
Bonaire, Sint Eustatius and Saba; Curaçao; Sint Maarten (Dutch part)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The global population is estimated to number > c.1,200,000 individuals (Wetlands International 2006), while the population in Japan has been estimated at <c.50 wintering individuals (Brazil 2009).
Population Trend: Increasing

Habitat and Ecology [top]

Systems: Terrestrial; Freshwater; Marine
Citation: BirdLife International 2012. Bucephala albeola. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 18 June 2013.
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