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Page 6352, results 158776 - 158800

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Population ecology of the great blue heron with special reference to western Oregon
Charles J. Henny, M.R. Bethers
1971, Canadian Field-Naturalist (85) 205-209
Great Blue Heron (Ardea herodias) begin nesting in western Oregon about 1 month earlier than reported from the Philadelphia region and about 2 months earlier than reported from Southern Alberta. The number of young fledged per nesting pair in Oregon was 2.04 in 1970 which was nearly identical to the...
Hawk migration over White Marsh, Maryland
C.D. Hackman, Charles J. Henny
1971, Chesapeake Science (12) 137-141
The average number of hawks observed per hour in autumn migration between 1951-1954 and 1958-1961 at White Marsh, Maryland, was compared. The counts indicated that the status of the ten species observed may be divided into three categories: (1) relatively stable species (red-tailed hawk), (2) declining species (sparrow hawk, red-shouldered...
Some patterns of woodcock activities on Maine summer fields
W.B. Krohn
1971, The Wilson Bulletin (83) 396-407
Certain aspects of woodcock usage of summer fields were studied in Maine. Findings were as follows: ....1. On two study fields in 1968, numbers of woodcock first began spending nights in the fields during the second week of June. During 1968 and 1969, the number of birds flushed from the...
Publication dates of the North American Fauna series
Richard C. Banks
1971, The Auk (88) 676-676
The correct date of publication of numbers in the well-known North American Fauna series, begun in 1889, was printed on the cover of each issue through No. 48. After that time dates of publication that appear on the covers are either incomplete or incorrect. For taxonomic purposes, for developing a...
Monitoring pesticides in wildlife
E. H. Dustman, W.E. Martin, R.G. Heath, W. L. Reichel
1971, Pesticides Monitoring Journal (5) 50-52
Early in the development of the wildlife monitoring program, certain criteria were recognized as being important in the selection of species of wild animals suitable for pesticide monitoring purposes. Ideally, the forms selected should be geographically well distributed, and they should be reasonably abundant and readily available for sampling....
Thickness of 1967-69 whooping crane eggshells compared to that of pre-1910 specimens
Daniel W. Anderson, J.F. Kreitzer
1971, The Auk (88) 433-434
Table 1 summarizes measurements of pre-1910 Whooping Crane (Grus americana) eggshells obtained from 10 North American museums and private egg collections. They include 30 eggs from Iowa, 5 from North Dakota, 13 from Manitoba, and 2 each from Saskatchewan and Alberta; 11 of the eggs were classified as subelliptical and...
Proceedings of the eighty-eighth stated meeting of the American Ornithologists' Union
Richard C. Banks
1971, The Auk (88) 144-162
The Eighty-eighth Stated Meeting of the American Ornithologists' Union was held 5-9 October 1970 at Buffalo, New York. Cosponsors were the Buffalo Society of Natural Sciences, the Buffalo Audubon Society, and the Buffalo Ornithological Society. Business sessions were held in the Statler Hilton Hotel on 5 October, and papers...
Synecology of a Virginia salt marsh
J.A. Kerwin, R. Pedigo
1971, Chesapeake Science (12) 125-130
In the spring and summer of 1964 a salt marsh in Gloucester County, Virginia, was analyzed using random quadrat sampling. Synthetic treatments were employed to evaluate data and were correlated with observed differences in elevation. Floristic data indicate the Virginia salt marshes show closer similarity to marshes north of Chesapeake...