NPSpecies

Potentially an annual migrant over the Park (A. Egan, pers. comm., August 2005). On record of 4 birds near Edwards Island, 29 May 1986 (Van Buskirk and Smith 1994). Recorded as Whistling Swan (Olor columbianus) in Johnsson, Shelton, and Jordan 1982. From May to August in 1976, 4 birds (presumably the same group) were seen in various harbors aroud the island (Johnsson, Shelton, and Jordan 1982).; Data Source: A. Egan, pers. comm., August 2005. Van Buskirk and Smith 1994. Johnsson, Shelton, and Jordan 1982.

Park is just east of migration range (Sibley 2000).; Data Source: Sibley 2000. Krefting, Lee, Shelton, and Gilbert 1966.

Data Source: Van Buskirk and Smith 1994. Johnsson, Shelton, and Jordan 1982.

Park Species Detail: Name change sequence from Whistling Swan (Olor columbianus) in 1957 to Tundra Swan (Cygnus columbianus) in 1983 as per The History of North American Bird Names in the American Ornithologists' Union Checklists 1886 - 2000. Website accessed on October 13, 2005 (http://www.members.aol.com/darwinpage/zoo/AOUa.htm#Swans)., Park Species Data Source: A. Egan, pers. comm., August 2005. Sibley 2000. Van Buskirk and Smith 1994. Johnsson, Shelton, and Jordan 1982. Krefting, Lee, Shelton, and Gilbert 1966.