Egg measurements for three endangered species
J.D. Stephenson, G. Smart
1972, The Auk (89) 191-192
From 1967 through 1969, external dimensions of the eggs of three endangered species of birds were measured. Included were 33 eggs of the Whooping Crane (Grus americana), 158 eggs of the Aleutian Canada Goose (Branta canadensis leucopareia), and 809 eggs of the Masked Bobwhite Quail (Colinus virginiana ridgwayi). In the...
The feeding of some ornithophilic black flies (Diptera: Simuliidae) in the laboratory and their role in the transmission of Leucocytozoon simondi
I.B. Tarshis
1972, Annals of the Entomological Society of America (65) 842-848
Techniques and equipment are described for feeding, in the laboratory, Cnephia invenusta (Walker), Simulium innocens Shewell, and S. rugglesi Nicholson & Mickel collected from exposed birds at the Seney National Wildlife Refuge, Seney, Michigan, and C. ornithophilia Davies, Peterson, & Wood, S. euryadminiculum Davies, and S. rugglesi reared from larvae at the Seney Refuge (S. rugglesi) and the Patuxent Wildlife Research Center,...
Ethyl Mercury p-Toluene Sulfonanilide: Lethal and Reproductive Effects on Pheasants
J. W. Spann, R.G. Heath, J.F. Kreitzer, L. N. Locke
1972, Science (175) 328-331
Ethyl mercury p-toluene sulfonanilide (active ingredient of Ceresan M) at a dietary concentration of 30 parts per million (12.5 parts of mercury per million) was lethal to adult ring-necked pheasants. Egg production and survival of third-week embryos were sharply reduced when breeders were maintained on feed containing 10...
Accidental mortality of diving ducks at St. Marys College, St. Marys, Maryland
L. N. Locke
1972, Maryland Birdlife (28) 25-26
Plumage investigations of Colorado band-tailed pigeons
J.A. White, C.E. Braun
1972, Journal of the Colorado-Wyoming Academy of Science (7) 70
The season--July, August, September, 1972
C.S. Robbins
1972, Maryland Birdlife (28) 150-158
25th winter bird-population study. 8. Hickory-oak-ash floodplain forest
C.S. Robbins
1972, American Birds (26) 664-665
The season--October, November, December, 1971
C.S. Robbins
1972, Maryland Birdlife (28) 29-39
An appraisal of the winter bird-population study technique
C.S. Robbins
1972, American Birds (26) 688-692
Thirty-sixth breeding bird census. 6. Upland tulip tree-maple-oak forest
C.S. Robbins
1972, American Birds (26) 944-945
Distribution and abundance of the brown-headed cowbird
W.T. Van Velzen
1972, Jack-Pine Warbler (50) 110-113
The seventy-second Christmas bird count. 319. Little Creek, Va
P. Sykes Jr.
1972, American Birds (26) 272-273
Immature Prosthodendrium sp. in a lesser scaup (Aythya affinis)
A.A. Kocan, R. M. Kocan
1972, Journal of Parasitology (58) 1014-1015
No abstract available....
New birds in Delaware
J. T. Linehan
1972, Delaware Conservationist (15) 15-16
Winter bird survey, 1972
D.R. Bystrak, C.S. Robbins
1972, Maryland Birdlife (28) 15-24
Further analysis of the logarithmic relationship of DDE residues to eggshell thinning
L. J. Blus, C.D. Gish, A. A. Belisle, R. M. Prouty
1972, Nature (240) 164-166
No abstract available....
Recaptures and recoveries of common snipe wintering in Texas
K.A. Arnold
1972, Western Bird Bander (47) 17-19
Residues of organochlorine pesticides, polychlorinated biphenyls, and mercury and autopsy data for bald eagles, 1969 and 1970
Andre A. Belisle, William L. Reichel, Louis N. Locke, Thair Lamont, Bernard M. Mulhern, Richard M. Prouty, Robert B. DeWolf, Eugene Cromartie
1972, Pesticides Monitoring Journal (6) 133-138
Thirty-nine bald eagles found sick or dead in 13 States during 1969 and 1970 were analyzed for pesticide residues. Residues of DDE, dieldrin, polychlorinated biphenyls (PCB's), and mercury were detected in all bald eagle carcasses; DDD residues were detected in 38; DDT, heptachlor epoxide, and dichlorobenzophenone (DCBP) were detected less...
Patuxent Wildlife Research Center: Measuring the impact of pesticides on the ecology
L.F. Stickel, E. H. Dustman
1972, Pollution Abstracts (3) 4-7
Proceedings of the eighty-ninth stated meeting of the American Ornithologists' Union
Richard C. Banks
1972, The Auk (89) 156-170
The Eighty-ninth Stated Meeting of the American Ornithologists' Union was held 30 August-3 September 1971 at Seattle, Washington, under the sponsorship of the University of Washington. Business sessions and social activities were held in the Student Union Building and the University Tower Hotel; papers sessions were held in the...
Logarithmic relationship of DDE residues to eggshell thinning
L. J. Blus, C.D. Gish, A. A. Belisle, R. M. Prouty
1972, Nature (235) 376-377
A concentration-effect relationship seems to exist between DDE in eggs and shell thinning. It seems to follow a mathematically similar pattern in different species though it seems to operate at different levels....
Woodcock status report, 1971
E.R. Clark
1972, Special Scientific Report - Wildlife 153
Use of banding data in migratory game bird research and management
A. D. Geis
1972, Special Scientific Report - Wildlife 154
Bibliography on methods of analyzing bird banding data, with special reference to the estimation of population size and survival
David R. Anderson
1972, Special Scientific Report - Wildlife 156
Comparative Dietary Toxicities of Pesticides to Birds
R.G. Heath, J. W. Spann, E. F. Hill, J.F. Kreitzer
1972, Special Scientific Report - Wildlife 152
This report presents measurements of the lethal dietary toxicity of 89 pesticidal chemicals to young bowhites, Japanese quail, ring-necked pheasants, and mallards. Toxicity is expressed as the median lethal concentration (LC 50) of active chemical in a 5-day ad libitum diet. LC 50's and associated statistics are derived...
