Exposure of waterfowl to lead : a nationwide survey of residues in wing bones of seven species 1972-73
1979
Stendell, Rey C. |
Birds
Environmental pollutants and eggshell thickness : anhingas and wading birds in the eastern United States
1979
Ohlendorf, Harry M. |
Toxicity of lead and proposed substitute shot to mallards
1974
Longcore, J. R. |
Response of breeding birds to aerial sprays of trichlorfon (Dylox) and carbaryl (Sevin-4-oil) in Montana forests
1979
DeWeese, Lawrence R. |
Migration of birds
1950
Lincoln, Frederick Charles |
The roseate spoonbill
1942
Allen, Robert Porter |
Herons of the United States
1924
Pearson, T. Gilbert (Thomas Gilbert) |
The avifauna of northern Latin America : a symposium held at the Smithsonian Institution, 13-15 April 1966
1970
Buechner, Helmut K. |
Buechner, Jimmie H. |
Native names of Mexican birds : cross-referenced English-Spanish-Scientific
1981
Birkenstein, Lillian R. |
Tomlinson, Roy E. |