Greater Scaup

About the Greater Scaup
Also known as: Scaup, Bluebill, American Scaup, American Scaup Duck, Broadbill, Greater Black-head, Greater Scaup Duck, Scaup Duck
Greater Scaup

The Greater Scaup is a medium-sized diving duck that breeds in northern parts of the Northern Hemisphere, including much of Alaska and northern Canada, and far northern parts of Russia and Europe.

Greater Scaups are closely related to Lesser Scaups. Breeding males of both species have dark bodies and heads with light backs. Lesser Scaups are smaller and have a different head shape.

The Greater Scaup has a large natural range and the conservation status is considered to be Least Concern as of September 2013.

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Details & Statistics



The Greater Scaup is listed as Least Concern on the IUCN Red List and was last assessed in 2012 by BirdLife International. 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). Although the population may be decreasing, the decline is not believed to be sufficiently rapid to 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.

International Names

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