British birds (1924)

British birds (1957)

British birds (1958)

British birds (1960)

British birds (1961)

British birds (1962)

British birds (1963)

British birds (1965)

British birds (1966)

British birds (1967)

British birds (1968)

British birds (1969)

British birds (1971)

British birds (1972)

British birds (1973)

British birds (1974)

British birds (1979)

British birds (1980)

British birds (1982)

British birds (1983)

British birds (1984)

British birds (1985)

British birds (1986)

British birds (1987)

British birds (1988)

British birds (1989)

British birds (1990)

British birds (1991)

British birds (1992)

British birds (1993)

British birds (1995)

British birds (1996)

British birds (1997)

British birds (1998)

British birds (1999)

British birds (2000)

British birds (2002)

British birds (2003)

British birds (2004)

British birds (2005)

British birds (2006)

British birds (2007)

British birds (2008)

British birds (2009)

British birds (2010)

British birds (2011)

British birds (2012)

British birds (2013)

British birds (2014)

British birds (2015)

British birds (2016)

Bulletin - Ridgway Ornithological Club. (American field, 1887)

Bulletin - New York State Museum. (University of the State of New York, 1951)

Bulletin - Natural History Society of Maryland (The Society, 1936)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1897)

Bulletin - Essex County Ornithological Club of Massachusetts. (1931)

Bulletin - National Museum of Canada. (National Museum of Canada, 1926)

Bulletin - New York State Museum. (University of the State of New York, State Education Dept, 2003)

Bulletin - United States National Museum (G.P.O, 1963)

Bulletin - United States National Museum (G.P.O, 1968)

Bulletin - National Museum of Canada. (National Museum of Canada, 1946)

Bulletin - National Museum of Canada. (National Museum of Canada, 1948)

Bulletin - National Museum of Canada. (National Museum of Canada, 1949)

Bulletin - National Museum of Canada. (National Museum of Canada, 1950)

Bulletin - National Museum of Canada. (National Museum of Canada, 1952)

Bulletin - National Museum of Canada. (National Museum of Canada, 1953)

Bulletin - National Museum of Canada. (National Museum of Canada, 1954)

Bulletin - National Museum of Canada. (National Museum of Canada, 1967)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1888)