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Osprey nest success in Eastern Bay, Maryland
Nest success was determined for 330 osprey nesting attempts along Eastern Bay, Maryland, from 1966 through 1974. Young were fledged in 45 percent of...
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The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay
An aerial survey in association with several intensive ground surveys yielded the first estimate of the size of the osprey ( Pandion haliaetus...
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The status of the osprey in Cape May County, New Jersey between 1939 and 1963
Comparison is made of the population of ospreys in Cape May County, N.J., in the late 1930’s with that in 1963, and with a population of these birds...
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DDE at low dietary levels kills captive American kestrels
Two of 14 male American kestrels died after 14 and 16 months on a diet containing 2.8 p.p.m., wet weight, p,p′-DDE. The brains of the two birds...
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Incidence of crooked vertebral columns in Juvenile Atlantic menhaden, Brevoortia tyrannus
Juvenile Atlantic menhaden from 20 estuaries between Florida and Massachusetts were visually examined for crooked vertebral columns. Only 12 abnormal...
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Conservation and Preservation
From the definitions of the previous chapter it can be seen that preservation is a central theme of conservation, since any form of management on a...
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Pesticide residues in eggs of wild birds: Adjustment for loss of moisture and lipid
Eggs of wild birds collected for the purpose of measuring concentrations of pesticides or other pollutants vary from nearly fresh to nearly dry so...
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Early specimens of the eastern wolf,Canis lupus lycaon
Celebration of the bicentennial of the birth of James Smithson, in 1965, disclosed the existence of two partial wolf skulls among Indian artifacts in...
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Reproductive success of Potomac River ospreys—1970
Osprey reproductive success on the Potomac River during 1970 is described. Thirty-five percent of the accessible active nests fledged young and only...
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Osprey nesting success along the Choptank River, Maryland
Nesting success of ospreys along the Choptank River, Maryland, was studied from 1968 through 1971. A total of 96 nesting attempts was observed; 86 of...
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Pesticide Residues in Birds and Mammals
Chemicals have long been used as tools to prevent insects from making undue inroads into man’s food supply and to break the vector chain for diseases...