William J. L. Sladen

William Joseph Lambart Sladen

Sladen was born in Wales and trained in medicine with an MD from London and a Ph.D. in zoology from Oxford and joined a research team to the Antarctic in 1948 as part of the Falkland Islands Dependencies Survey. The expedition required him to live alone and sledge with dogs after his colleagues were killed in a fire. He moved to the United States in 1956 and taught behaviour and ecology at the Johns Hopkins University School of Public Health. He worked with the US Antarctic Research Program and undertook studies on diseases in wild birds. He detected DDT traces in Antarctic penguins in 1964^[3] and influenced the EPA's ban on the pesticide. Sladen worked on Wrangel Island in cooperation with Soviet scientists. In the 1970s he studied Tundra swans and advised the US airforce. A film on his studies Penguin City was produced in 1971 with narration by Charles Kuralt and broadcast by CBS.^[4] In the 1980s he worked with Bill Lishman to train Canada geese to follow ultralight aircraft. This would later inspire the movie Fly Away Home (1996). He retired to Fauquier County in 1990 and established a research station north of Warrenton where he worked and lived until his death. He was survived by his second wife, the former Jocelyn Arundel, as well as his first wife, Brenda Macpherson Sladen, and his two children, Kate Adélie Sladen and Hugh Sladen, as well as two grandchildren, Evan and Dillon Bush.^{[5][6][7][8][9]}

Sladen's maternal great-grandparents founded the

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