Category: Status Reports
Published: January 2015
Author(s): Thor Hanson and Gary J. Wiles
With its striking plumage and brilliant orange bill, the Tufted Puffin (Fratercula cirrhata) is an iconic seabird well known to native peoples, fishermen, and coastal communities throughout its range in the temperate and sub-arctic North Pacific. Though pelagic in winter, puffins gather on islands and headlands during spring and summer to breed and raise their young. They are members of the auk family, with stocky bodies adapted to â€�"flyingâ€ underwater as they dive in pursuit of a wide range of fish and invertebrate prey. Nesting Tufted Puffins range up to 100 km from their breeding colonies to forage for their nestlings, and are famed for carrying 20 or more small fish at one time, neatly lined up and carried crosswise in their large, brightly colored bills.
Historically, 44 Tufted Puffin nesting colonies were documented in Washington and the bird was considered common in the San Juan Islands, the Strait of Juan de Fuca, and particularly along the outer coast of the Olympic Peninsula. The population along the outer coast was conservatively estimated at about 25,000 individuals in the early 1900s, and the statewide population remained in that range for much of the 20th century, with a 1978-1984 minimum estimate of 23,342 birds at 35 known sites. Recent surveys, however, found nesting birds at only 19 sites in 2007-2010 and resulted in a minimum outer coastal population estimate of 2,958 individuals in 2009. Maximum estimates once ranked nine colonies at 1,000 or more individuals each, with two reaching 10,000 or more, but no current breeding sites now hold more than a few hundred birds. Significant average annual rates of decline have been recorded on pelagic surveys west of Westport (13.6%, from 1972 to 2001) and coastal surveys from Cape Flattery to Point Grenville (8.9%, from 2001 to 2012). Taken together these studies strongly suggest that Tufted Puffins in Washington have undergone an order of magnitude population decline, which is ongoing, and a decrease in the number of occupied breeding colonies of 57% since 1886-1977 and 46% since 1978-1984. This declining trend corresponds with a broader geographic pattern of range contraction, population decline, and breeding colony disappearance noted throughout the southern portion of the speciesâ€™ distribution, including California, Oregon, and Japan.
Causes for the decline are unknown, but potentially include a number of historical and recent factors such as reduced prey availability, changing oceanic and climatic conditions, entrapment in fishing nets, mortality from oil spills and chemical contaminants, human disturbance of breeding colonies, impacts from introduced species, and increased Bald Eagle predation. The largest known mortality event in Washington was the 1991 Tenyo Maru oil spill, which killed an estimated 9% of the stateâ€™s Tufted Puffin population. Rising ocean temperatures and other shifts associated with climate change are expected to reduce ocean productivity and forage fish populations throughout the North Pacific, creating a challenging environment for piscivorous birds like the Tufted Puffin.
The current conservation status and legal protections for Tufted Puffins include no specific management or recovery requirements for Washingtonâ€™s population. Puffins in Washington are considered a species of concern by the U.S. Fish and Wildlife Service and have been petitioned for listing under the federal Endangered Species Act, but an evaluation to list the species will not begin until 2016 or 2017. At the state level, Tufted Puffins have been a candidate for listing since 1998 and have been identified by Audubon Washington as a species at high risk from the impacts of climate change.
Given the rate of recent population decreases, widespread colony abandonment, ongoing threats from multiple factors, and the challenging ocean conditions expected for piscivorous seabirds in the years ahead, Tufted Puffins are likely to continue declining in Washington. If the current 8.9% annual rate of decline continues, the stateâ€™s population could become functionally extirpated within about 40 years. For these reasons, it is recommended that the Tufted Puffin be listed as endangered in Washington.
Draft documents are provided for informational purposes only. Drafts may contain factual inaccuracies and may not reflect current WDFW policy.