British birds (1978)

British birds (1979)

British birds (1980)

British birds (1981)

British birds (1982)

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 (1994)

British birds (1995)

British birds (1996)

British birds (1997)

British birds (1998)

British birds (1999)

British birds (2000)

British birds (2001)

British birds (2002)

British birds (2003)

British birds (2004)

British birds (2005)

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)

British Ornithologists' Club occasional publications - British Ornithologists' Club. (British Ornithologists' Club, 1997)

Brothers EIS area in Central Oregon : wildlife habitat interrelationships : working draft - United States. Bureau of Land Management. Oregon State Office. (Bureau of Land Management, Oregon State Office, 1982)

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