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Page 6495, results 162351 - 162375

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Singing behavior of the Swainson's warbler
B. Meanley
1968, The Wilson Bulletin (80) 72-77
Studies of the singing behavior of the Swainson?s Warbler were conducted mainly near Macon, Bibb County, Georgia, and in the Dismal Swamp, Nansemond County, Virginia, during the springs of 1965 and 1966. Singing behavior on the ground and in trees is discussed. Swainson?s Warblers sing vigorously from the time they...
Relative toxicity of lead and five proposed substitute shot types to pen-reared mallards
John W. Grandy, Louis N. Locke, George E. Bagley
1968, Journal of Wildlife Management (32) 483-488
A 30-day toxicity test was made to determine the relative toxicity of lead, a tin-lead alloy, zinc, nickel, teflon-coated steel, and tin, all in shot form, to pen-reared mallard drakes. All of the 15 ducks dosed with lead died. Twenty-seven percent of 15 dosed with alloy, and 20 percent of...
Chlorinated hydrocarbons and eggshell changes in raptorial and fish-eating birds
J.J. Hickey, D. W. Anderson
1968, Science (162) 271-273
Catastrophic declines of three raptorial species in the United States have been accompanied by decreases in eggshell thickness that began in 1947, have amounted to 19 percent or more, and were identical to phenomena reported in Britain. In 1967, shell thickness in herring gull eggs from five states decreased...
The red-whiskered bulbul in Florida
Richard C. Banks, R.C. Laybourne
1968, The Auk (85) 141-141
The establishment of a feral population of the Red-whiskered Bulbul (Pycnonotus jocosus) in the environs of Miami, Dade County, Florida, was reported by L. A. Stimson (Florida Naturalist, 35: 93, 1962). Bulbuls were present in Kendall, just south of Miami, in the spring of 1961, and apparently raised young there...
Blood parasites in North American waterfowl
C. M. Herman
1968, Transactions of the North American Wildlife and Natural Resources Conference (33) 348-359
One thing seems to stand out in the overall knowledge we have of the blood parasites of waterfowl, as previously noted by Herman and Wehr, (1954): the greatest potential of losses is in the younger age groups, usually those birds 5-10 weeks old. In Leucocytozoon infections, death occurs as early...