North American owls : biology and natural history /

A guide to North American waterfowl /
by: Johnsgard, Paul A.
Published: (1979)

The owls of North America (north of Mexico) : all the species and subspecies illustrated in color and fully described /
by: Karalus, Karl E.
Published: (1974)

The book of owls.
by: Walker, Lewis Wayne
Published: (1974)

The hummingbirds of North America /
by: Johnsgard, Paul A.
Published: (1983)

Owls by day and night /
by: Tyler, Hamilton A.
Published: (1978)

How to spot an owl /
by: Sutton, Patricia, 1951-
Published: (1994)

Grouse and quails of North America /
by: Johnsgard, Paul A.
Published: (1973)

North American birds of prey /
by: Mansell, William, 1908-
Published: (1980)

The owl book /
by: Storms, Laura
Published: (1983)

Sexual size dimorphism in hawks and owls of North America /
by: Snyder, Noel F. R.
Published: (1976)

Sandhill and whooping cranes : ancient voices over America's wetlands /
by: Johnsgard, Paul A.
Published: (2011)

Sandhill and whooping cranes : ancient voices over America's wetlands /
by: Johnsgard, Paul A.
Published: (2011)

Raptors of North America : natural history and conservation /
by: Snyder, Noel F. R.
Published: (2006)

North American birds of prey /
by: Sprunt, Alexander, 1898-1973
Published: (1955)

Life histories of North American birds of prey.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

Life histories of North American shore birds.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

Voices of North American owls.
Published: (2006)

Grassland grouse and their conservation /
by: Johnsgard, Paul A.
Published: (2002)

Life histories of North American diving birds ; order Pygopodes.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1946)

Life histories of North American wild fowl.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

North American ducks, geese, & swans /
by: Heintzelman, Donald S.
Published: (1978)

A photographic guide to North American raptors /
by: Wheeler, Brian K., 1955-
Published: (1995)

Life histories of North American gallinaceous birds.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

North American shore birds ; a history of the snipes, sandpipers, plovers and their allies, inhabiting the beaches and marshes of the Atlantic and Pacific coasts, the prairies and the shores of the inland lakes and rivers of the North American continent ... /
by: Elliot, Daniel Giraud, 1835-1915
Published: (1895)

Life histories of North American nuthatches, wrens, thrashers, and their allies.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1964)

Life histories of North American nuthatches, wrens, thrashers, and their allies.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

Life histories of North American flycatchers larks, swallows, and their allies.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

The book of North American owls /
by: Sattler, Helen Roney
Published: (1995)

A guide to hawk watching in North America /
by: Heintzelman, Donald S.
Published: (1979)

Owls of North America /
by: Backhouse, Frances
Published: (2008)

A field guide to hawks of North America /
by: Clark, William S., 1937-
Published: (1987)

Life histories of North American wild fowl (order Anseres) : ducks geese & swans.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1951)

Life histories of North American petrels and pelicans, and their allies.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

Life histories of North American thrushes, kinglets, and their allies.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)

Life histories of North American thrushes, kinglets, and their allies.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1964)

Life histories of North American jays, crows, and titmice.
by: Bent, Arthur Cleveland, 1866-1954
Published: (1970)