The SDJV is testing survey methodologies to improve our understanding of sea duck status and trends, including conducting experimental surveys and developing methods to improve species detection and identification. Spectacled Eiders and the Alaska-breeding population of Steller’s Eiders are listed as Threatened in the U.S., and the eastern populations of Harlequin Ducks and Barrow’s Goldeneyes are listed as Species of Special Concern in Canada. Basic natural history information is lacking for some species, and there are few reliable population indices or estimates of annual survival for most of the species.Īccurate information on sea duck numbers and trends is lacking for most species, but some populations are in trouble. The 15 species of waterfowl known as sea ducks constitute more than a third of the duck species breeding in North America, yet they are the most poorly understood group of waterfowl. The partners are the United States Fish and Wildlife Service, Environment and Climate Change Canada, United States Geological Survey, Ducks Unlimited, Birds Canada, National Audubon Society, and Flyway Councils for all four North American Flyways. The Sea Duck Joint Venture is a conservation partnership established in 1999 as part of the North American Waterfowl Management Plan.
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