Perils past and present : major threats to birds over time.

Waterbird nest monitoring program in San Francisco Bay (2005-10) /
by: Ackerman, Joshua Timothy, et al.
Published: (2012)

Wildfowl.
Published: (1968)

Avian Ecology and Conservation in an Urbanizing World /
by: Marzluff, John M.
Published: (2001)

The annual report of the Severn Wildfowl Trust.

The Migratory Bird Treaty Act (MBTA) : selected legal issues /
by: Tsang, Linda
Published: (2018)

Waterfowl tomorrow /
Published: (1964)

Bird population studies : relevance to conservation and management /
Published: (1993)

The annual report of the Wildfowl Trust.

A history of the game birds, wild-fowl and shore birds of Massachusetts and adjacent states ... with observations on their ... recent decrease in numbers; also the means for conserving those still in existence,
by: Forbush, Edward Howe, 1858-1929
Published: (1912)

Improve wildlife species tracking : implementing an enhanced global positioning system data management system for California condors /
by: Waltermire, Robert G.
Published: (2016)

Bald eagle : monitoring if delisted /
Published: (1999)

Birds in peril : a guide to the endangered birds of the United States and Canada /
by: Mackenzie, John P. S.
Published: (1977)

Birds in peril : a guide to the endangered birds of the United States and Canada /
by: Mackenzie, John P. S.
Published: (1977)

To save a bird in peril /
by: Zimmerman, David R.
Published: (1975)

Counting birds : the idea that helped save our feathered friends /
by: Stemple, Heidi E. Y.
Published: (2018)

Mediterranean marine avifauna : population studies and conservation /
Published: (1986)

State of the world's birds 2004 : indicators for our changing world /
Published: (2004)

PBS news weekend.
Published: (2023)

How to watch birds.
by: Barton, Roger, 1903-
Published: (1961)

The bird study book /
by: Pearson, T. Gilbert (Thomas Gilbert), 1873-1943
Published: (1917)

How to watch birds /
by: Barton, Roger, 1908-
Published: (1964)

The Audubon guide to attracting birds /
by: Baker, John Hopkinson, 1894-
Published: (1941)

How to watch birds /
by: Barton, Roger, 1903-
Published: (1961)

Wild bird guests ; how to entertain them /
by: Baynes, Ernest Harold, 1868-1925
Published: (1915)

Jack Miner and the birds : and some things I know about nature /
by: Miner, Jack, 1865-1944
Published: (1923)

The Wonder of birds /
Published: (1983)

Save the birds /
Published: (1989)

The bird study book : by T. Gilbert Pearson ... coloured frontspiece, pen and ink drawings, by Will Simmons, and 16 photographs.
by: Pearson, T. Gilbert (Thomas Gilbert), 1873-1943
Published: (1929)

Endangered birds of the world, the ICBP bird Red data book /
by: King, Warren B.
Published: (1981)

Habitats for birds in Europe : a conservation strategy for the wider environment /
by: Tucker, G. M. (Graham M.)
Published: (1997)

Handbook of attracting birds /
by: McElroy, Thomas P., Jr., 1914-1994
Published: (1951)

Picture primer of attracting birds /
by: Mason, Charles Russell, 1895-
Published: (1952)

Draft wetlands management and waterbird conservation plan : Hanalei National Wildlife Refuge : Hawai'i /
Published: (2020)

Vanishing birds : their natural history and conservation /
by: Halliday, Tim, 1945-
Published: (1978)

Saving migrant birds : developing strategies for the future /
by: Faaborg, John, 1949-
Published: (2002)

Saving migrant birds : developing strategies for the future /
by: Faaborg, John, 1949-
Published: (2002)