Upland birds of northeastern New Guinea : a guide to the hill and mountain birds of Morobe Province 1978 Beehler, Bruce M. |
Report of the birds collected by the British Ornithologists' Union Expedition and the Wallaston Expedition in Dutch New Guinea 1915 Ogilvie-Grant, W. R. |
Waterfowl and their wintering grounds in Mexico, 1937-1964 1981 Saunders, George B. | Saunders, Dorothy Chapman |
Habitat use and productivity of Canvasbacks in southwestern Manitoba, 1961-72 1982 Stoudt, Jerome H. |