An international standard for a mapping method in bird census work recommended by the International Bird Census committee
S. Svensson, K. Williamson, C. Ferry, A.H. Joensen, D. Lea, H. Oelke, C.S. Robbins
1970, Audubon Field Notes (24) 722-726
A note on the stomach contents of two whooping cranes
Francis M. Uhler, Louis N. Locke
1970, Condor (72) 246-246
On 4 January 1968 an adult female Whooping Crane (Grus americana) was illegally shot by a hunter near the Aransas National Wildlife Refuge, Texas. The carcass was immediately frozen and subsequently shipped to the Patuxent Wildlife Research Center for autopsy....
A million robins and 10,000 pine siskins in the Dismal Swamp
B. Meanley
1970, Atlantic Naturalist (25) 40
The season - January, February, March, 1970
C.S. Robbins
1970, Maryland Birdlife (26) 68-73
Winter wing molt in the western grebe
F.C. Sibley
1970, Condor (72) 373-373
No abstract available....
Molts and plumages of the red-winged blackbird with particular reference to fall migration
B. Meanley, G.M. Bond
1970, Bird-Banding (41) 22-27
No abstract available....
Recovery of DDT and dieldrin from tissues of Coturnix japonica stepwise during residue analysis
R. M. Prouty, E. Cromartie
1970, Environmental Science & Technology (4) 768-769
No abstract available....
The season - October, November, December, 1969
C.S. Robbins
1970, Maryland Birdlife (26) 21-29
The season - July, August, September, 1970
C.S. Robbins
1970, Maryland Birdlife (26) 116-121
The season - April, May, June, 1970
C.S. Robbins
1970, Maryland Birdlife (26) 99-108
Our bobwhites come home
R. E. Tomlinson, D.E. Brown
1970, Wildlife Views 5-11
New hope for masked bobwhites in Arizona
R. E. Tomlinson
1970, Wildlife Views
Mass movement of black fly larvae on silken threads (Diptera: Simuliidae)
I.B. Tarshis, W. Neil
1970, Annals of the Entomological Society of America (63) 607-610
Stoppage of waterflow in a stream resulted in the migration of massive numbers of black fly larvae on silken threads. Larvae were found on single silken threads, but the heaviest concentrations were on “cables” composed of 25-50 individual silken threads. The larvae were attached in concentric rings around the silken...
Seventieth Christmas bird count. 278. Back Bay National Wildlife Refuge, Va
P.W. Sykes Jr.
1970, Audubon Field Notes (24) 212
The effect of putrefaction of eggs upon residue analysis of DDT and metabolites
B.M. Mulhern, W. L. Reichel
1970, Bulletin of Environmental Contamination and Toxicology (5) 222-225
No abstract available....
Organochlorine residues and autopsy data from bald eagles 1966-68
B.M. Mulhern, W. L. Reichel, L. N. Locke, T. G. Lamont, A. A. Belisle, E. Cromartie, George E. Bagley, R. M. Prouty
1970, Pesticides Monitoring Journal (4) 141-144
Sixty-nine bald eagles found moribund or dead in 25 States during 1966-68 were analyzed for pesticide residues. Residues of polychlorinated biphenyls and DDE were detected in all samples of eagle carcasses; residues of dieldrin were detected in 68 and residues of DDD in 64; DDT, heptachlor epoxide, and DCBP were...
Bronzed cowbird taken in Florida
R.E. Matteson
1970, The Auk (87) 588-588
On 8 November 1968 in Gainesville, Florida, I removed a male Bronzed Cowbird (Tangavius a. aeneus) from a blackbird decoy trap containing a large number of Brown-headed Cowbirds (Malothrus ater). Oliver L. Austin, Jr., at the Florida State Museum, verified the species identification by noting the notched inner webs of...
Soil-food chain-pesticide wildlife relationships in aldrin-treated fields
L.J. Korschgen
1970, Journal of Wildlife Management (34) 186-199
Soil-food-chain-pesticide wildlife relationships were investigated to learn the concentration of pesticide residues present in soils, macro-invertebrates, vertebrates, and seeds as a result of annual applications of aldrin at recommended rates for pest control. Two central Missouri cornfields treated with aldrin at 1 lb/acre, for 16 and 15 of the past...
Active anting in the Puerto Rican tanager
W.B. King, C. B. Kepler
1970, The Auk (87) 376-378
Anting, a bird’s intentional exposure of its body surface to chemical substances secreted by ants or other agents, has been recorded in over 20 species of birds of 40 families, mostly within the order Passeriformes. Our observations of anting in the Puerto Rico tanager (Neospingus speculiferus) extend the phenomenon to...
Incidence of malaria in a wintering population of canvasbacks (Aythya valisineria) on Chesapeake Bay
R. M. Kocan, J.O. Knisley
1970, Journal of Wildlife Diseases (6) 441-442
Canvasback ducks wintering on Chesapeake Bay had a 6% incidence of Leucocytozoon sirnondi and 2% incidence of Haemoproteus. Sub-inoculation of whole blood into Pekin ducklings produced a Plasmodium infection rate of 31%. Females were more frequently infected (12/22) than males (15/68). The parasite was identified as P. circumflexum....
Passive immunization of pigeons against trichomoniasis
R. M. Kocan
1970, Journal of Protozoology (17) 551-553
Nonimmune homing pigeons Columba livia were infected with the Jones' Barn strain of Trichomonas gallinae and subsequently transfused with plasma from acute or chronically infected pigeons harboring one of 3 different strains of T. gallinae. The transfusions were either a single 2 ml dose given one day after inoculation or three 1 ml doses given 0,...
Whistling swans breeding on the northwest coast of New Quebec
J.D. Heyland, E.B. Chamberlain, C.F. Kimball, D.H. Baldwin
1970, Canadian Field-Naturalist (84) 398-399
No abstract available....
A hoop-net trap for passerine birds--additional comments
E.B. Baysinger
1970, Bird-Banding (41) 311-311
No abstract available....
Challenge infection as a means of determining the rate of disease resistant Trichomonas gallinae-free birds in a population
R. M. Kocan, J.O. Knisley
1970, Journal of Wildlife Diseases (6) 13-15
Trichomonas gallinae-free pigeons and mourning doves were infected with the Jones' Barn strain of T. gallinae to determine the rate of disease resistant T. gallinae-free birds in each population. Although all birds became infected 88% of the pigeons were resistant to trichomoniasis while 82% of the mourning doves were resistant....
Paratyphoid in a barn owl
L. N. Locke, J.A. Newman
1970, Chesapeake Science (11) 67-68
No abstract available....