Camptorhynchus labradorius 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Anseriformes Anatidae

Scientific Name: Camptorhynchus labradorius (Gmelin, 1789)
Common Name(s):
English Labrador Duck
French Eider du Labrador
Taxonomic Source(s): Brooks, T. 2000. Extinct species. In: BirdLife International (ed.), Threatened Birds of the World, pp. 701-708. Lynx Edicions and BirdLife International, Barcelona and Cambridge, U.K.

Assessment Information [top]

Red List Category & Criteria: Extinct ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Brooks, T., Khwaja, N., Mahood, S.
This species was formerly distributed along the northeast coast of North America, but it is now Extinct as a result of hunting. There are no records since the collection of the last specimen, in 1875.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Camptorhynchus labradorius probably bred along the Gulf of St Lawrence and coastal Labrador, Canada, wintering from Nova Scotia south to Florida, USA (Gourdin 2009). The last confirmed specimen was collected off Long Island, New York, in 1875 (Chilton 1997), or possibly 1878 (Madge and Burn 1988).

Countries occurrence:
Regionally extinct:
Canada; United States
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:No
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:No extant population remains.
Additional data:
Continuing decline of mature individuals:Unknown
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:Birds presumably nested on sandbars and around sheltered bays and, in winter, foraged in shallow bays, harbours and estuaries (Chilton 1997).

Systems:Terrestrial; Marine
Continuing decline in area, extent and/or quality of habitat:Unknown
Generation Length (years):7.9
Movement patterns:Full Migrant
Congregatory:Congregatory (and dispersive)

Threats [top]

Major Threat(s): Shooting and trapping on the winter quarters were certainly proximate factors in the species's extinction. Overharvest of birds and eggs on the breeding grounds could also have been a factor (Chilton 1997), and it is likely that ecosystem-level effects following the arrival of Europeans reduced the supply of available food (Gourdin 2009).

Citation: BirdLife International. 2016. Camptorhynchus labradorius. The IUCN Red List of Threatened Species 2016: e.T22680418A92862623. . Downloaded on 14 August 2018.
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