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Publication Extents

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Dieldrin and DDT: Effects on sparrow hawk eggshells and reproduction
Richard D. Porter, Stanley N. Wiemeyer
1969, Science (165) 199-200
Patterns of reproductive failure in declining populations of several European and North American raptorial species were duplicated experimentally with captive American sparrow hawks Falco sparverius that were given a diet containing two commonly used organochlorine insecticides. Major effects on reproduction were increased egg disappearance, increased egg destruction by parent birds,...
Pre-nesting and nesting behavior of the Swainson's warbler
B. Meanley
1969, The Wilson Bulletin (81) 246-257
The Swainson?s Warbler is one of the least known of southern birds. Although fairly common in some parts of its summer range, observations of its breeding biology have been made by very few persons. The present study was conducted mostly at Macon, Georgia; Pendleton Ferry, Arkansas; and Dismal Swamp, Virginia....In...