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Page 6207, results 155151 - 155175

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Publication Extents

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Molt patterns and weight changes of the American woodcock
Ray B. Owen, W.B. Krohn
1973, The Wilson Bulletin (85) 31-41
A study of molt and changes in body weight of American Woodcock was conducted to better understand the summer and fall behavior of these birds and to indicate periods of physiological stress. The postnuptial molt of adults was a complete molt beginning in late June and ending by the middle...
Organochlorines, heavy metals, and the biology of North American accipiters
N.F.R. Snyder, Hollice A. Snyder, J.L. Lincer, R.T. Reynolds
1973, BioScience (23) 300-305
Analyses of eggs of three species of North American accipitrine hawks for organochlorines and heavy metals indicate that contamination with DDE may be the primary cause of recent population declines of two of the species, Cooper's hawk and sharp-shinned hawk....
Pesticide residues in eggs of wild birds: Adjustment for loss of moisture and lipid
L.F. Stickel, Stanley N. Wiemeyer, L. J. Blus
1973, Bulletin of Environmental Contamination and Toxicology (9) 193-196
Eggs of wild birds collected for the purpose of measuring concentrations of pesticides or other pollutants vary from nearly fresh to nearly dry so that objective comparisons cannot be made on the basis of weight of the contents at the time of collection. Residue concentrations in the nearly dry...
Organochlorine residues in woodcock wings, 11 states--1970-71
M. Anne Ross McLane, L.F. Stickel, E.R. Clark, D.L. Hughes
1973, Pesticides Monitoring Journal (7) 100-103
A survey of organochlorine residues in woodcock wings was undertaken to determine whether these wings are suitable for showing regional differences in residues and to obtain a baseline in 1970-71 for later comparisons. Woodcock wings were obtained from the annual hunter's wing survey. Samples came from eight States (Louisiana, Maine,...