Common tern colonies along the mid-Atlantic coast. I. Nestling chronology
D. C. Smith, R.M. Erwin, T. W. Custer, J.O. Fussell III
1981, Colonial Waterbirds (4) 160-165
1. Sixteen Common Tern colonies in Rhode Island, New Jersey, Virginia, and North Carolina were studied from May through July 1980 by four investigators. Nests were marked during egg laying and were monitored every 5-7 days until fledging of young. 2. Results from 1980 indicate that ambient temperature differences...
Using captive propagation to help save the Puerto Rican parrot
J. W. Wiley, G.F. Gee
1981, AFA Watchbird (8) 4, 6-11
Heavy metals in mammals from two unmined copper-zinc deposits in Wisconsin
G. J. Smith, O.J. Rongstad
1981, Bulletin of Environmental Contamination and Toxicology (27) 28-33
No abstract available....
Relationships between brain and carcass organochlorine residues in ospreys
Stanley N. Wiemeyer, E. Cromartie
1981, Bulletin of Environmental Contamination and Toxicology (27) 499-505
No abstract available. ...
The eighty-first Audubon Christmas bird count. North Carolina, South Carolina, Georgia, Florida
P.W. Sykes Jr.
1981, American Birds (35) 364-367
The eighty-first Audubon Christmas bird count. 411. Back Bay National Wildlife Refuge, Va
P.W. Sykes Jr.
1981, American Birds (35) 485-486
South Louisiana crude oil of DDE in the diet of mallard hens: Effects on egg quality
L.D. Vangilder, T.J. Peterle
1981, Bulletin of Environmental Contamination and Toxicology (26) 328-336
No abstract available....
Eustrongylides and pesticide levels in a great blue heron shot in Wisconsin
R. M. Windingstad, D. M. Swineford
1981, Prairie Naturalist (13) 161-162
The parasitic roundworm, Eustrongylides ignotus Jagersk, has been known to cause mortality and morbidity in members of the heron family in the eastern states of North America. To date no previous records exist for this nematode in Wisconsin. Even though eustrongylidiosis was first detected in the District of Columbia in...
The eighty-first Audubon Christmas bird count. 406. Southern Dorchester County, Md
C.S. Robbins
1981, American Birds (35) 483-484
Mosquito control with chemicals and the impacts on wildlife
L.R. DeWeese, L. C. McEwen, R.D. Deblinger, L.A. Settimi
1981, Proceedings of the West Central Mosquito and Vector Control Association (6) 23-25
The eighty-first Audubon Christmas bird count. 399. Ocean City, Md
C.S. Robbins
1981, American Birds (35) 481
The eighty-first Audubon Christmas bird count. 429. Little Creek, Va
P.W. Sykes Jr.
1981, American Birds (35) 490-491
Body lipids and pesticide burdens of migrant blue-winged teal
Donald H. White, Kirk A. King, C. A. Mitchell, A. J. Krynitsky
1981, Journal of Field Ornithology (52) 23-28
Blue-winged Teal were collected before and after their migration to wintering grounds in Latin America. Pesticide burdens, body weights, and lipid levels of carcasses were determined. Only DDE and dieldrin were detected in a small proportion of the samples and then at concentrations far below known-effect...
Sampling strategies for radio-tracking coyotes
G. J. Smith, J.R. Cary, O.J. Rongstad
1981, Wildlife Society Bulletin (9) 88-93
Ten coyotes radio-tracked for 24 h periods were most active at night and moved little during daylight hours. Home-range size determined from radio-locations of 3 adult coyotes increased with the number of locations until an asymptote was reached at about 35-40 independent day locations or 3 6 nights of hourly...
Effects of abundant species on the ability of observers to make accurate counts of birds
J. Michael Scott, Fred L. Ramsey
1981, The Auk (98) 610-613
Bird numbers can be estimated using a variety of methods (Emlen 1971, Berthold 1976, Reynolds et al. 1980). The number of birds counted is frequently reported in relation to some measure of effort: e.g. per unit area, per count period, per observer day, or per km of trail. The numbers...
[Book review] The mammals of Suriname by A. M. Husson
A. L. Gardner
1981, Journal of Mammalogy (62) 445-448
No abstract available. ...
Breeding habit of the toad Bufo coccifer in Costa Rica, with a description of the tadpole
R.W. McDiarmid, M.S. Foster
1981, Southwestern Naturalist (26) 353-363
The breeding habits of Bufo coccifer were studied in northwestern Costa Rica between 1971 and 1974. This species breeds during the rainy season, at least from May through August. Males chorus from areas of shallow water. Their calls resemble those of Mexican representatives of the species in pulse rate and...
The Chesapeake Bay's birds and organochlorine pollutants
H. M. Ohlendorf
1981, Transactions of the North American Wildlife and Natural Resources Conference (46) 259-270
Parental development of Eimerian coccidia in sandhill and whooping cranes
M.N. Novilla, J. W. Carpenter, T.R. Spraker, T.K. Jeffers
1981, Journal of Protozoology (28) 248-255
In contrast with isosporoid species of coccidia that have established extraintestinal phases of development, the eimeriids, except for a few species, generally have been considered inhabitants of the intestinal tract. Eimeria infection in sandhill cranes (Grus canadensis) and whooping cranes (G. americana) may result in disseminated visceral coccidiosis. Nodules were observed in...
Avian surveys of large geographical areas: A systematic approach
J. M. Scott, J.D. Jacobi, F. L. Ramsey
1981, Wildlife Society Bulletin (9) 190-200
A multidisciplinary team approach was used to simultaneously map the distribution of birds, selected food items, and major vegetation types in 34,000- to 140,000-ha tracts in native Hawaiian forests. By using a team approach, large savings in time can be realized over attempts to conduct similar surveys of smaller scope,...
Tolerance of adult mallards to subacute ingestion of crude petroleum oil
Barnett A. Rattner
1981, Toxicology Letters (8) 337-342
Adult male mallards were fed untreated mash or mash containing 1.5% Prudhoe Bay crude oil for 7 days ad lib. During the initial 24 h of exposure to crude petroleum oil, ducks consumed less mash (P less than 0.05) and lost approx. 3.5% of their initial body weight (P less...
Asiatic clam (Corbicula manilensis) and other foods used by waterfowl in the James River, Virginia
Matthew C. Perry, F.M. Uhler
1981, Estuaries (4) 229-233
Corbicula manilensis was found in the gizzards of 24 ducks of 5 species taken from the James River, Virginia, between 1973 and 1976. Percent average volume in these species ranged from trace to 6%. This is the first known occurrence of this exotic clam in the food of duck in Chesapeake...
Gas-liquid chromatographic and gas-liquid chromatographic-mass spectrometric determination of fenvalerate and permethrin residues in grasshoppers and duck tissue samples
W. L. Reichel, E. J. Kolbe, C. J. Stafford
1981, Journal of the Association of Official Analytical Chemists (64) 1196-1200
A procedure is described for determining fenvalerate and permethrin residues in grasshoppers and duck tissues. Samples are Soxhlet-extracted with hexane and cleaned up by gel permeation chromatography with an in-line alumina column. Samples are analyzed by gas-liquid chromatography with electron capture detection, and confirmed by gas-liquid chromatography-mass spectrometry. The average...
Forty-fourth breeding bird census. 61. Beech-spruce-maple forest
B.R. Noon, Sam Droege
1981, American Birds (35) 64
Interactions of wolves and black bears in northeastern Minnesota
L.L. Rogers, L.D. Mech
1981, Journal of Mammalogy (62) 434-436
No abstract available....
