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Endemicity And Regional Biodiversity In Nebraska's Breeding Avifauna, Paul A. Johnsgard
Endemicity And Regional Biodiversity In Nebraska's Breeding Avifauna, Paul A. Johnsgard
Papers in Ornithology
I estimate that 215 bird species currently breed or have previously bred in Nebraska. This number compares with a total of 330 spe¬cies that breed or have bred in the Great Plains region south of Canada, as I defined that region in my book on the breeding birds of the Great Plains (Johnsgard, 1979). An analysis of the relative species diversity of Nebraska's breeding avifauna establishes several areas of unusual species richness and endemicity, these most important being the Missouri Valley and associated middle to lower Niobrara Valley, the Pine Ridge area of the northwestern Panhandle, and the entire Platte …
A Half-Century Of Winter Bird Surveys At Lincoln And Scottsbluff, Nebraska, Paul A. Johnsgard
A Half-Century Of Winter Bird Surveys At Lincoln And Scottsbluff, Nebraska, Paul A. Johnsgard
Papers in Ornithology
Since 1900, the National Audubon Society has sponsored annual "Christmas bird counts" during the two-week period encompassing Christmas; and as a result, long-term data on winter bird populations have accumulated, especially for some locations. The first two such counts in Nebraska were made in 1909 and in 1912 in Lincoln. Beginning in 1947 and continuing to the present, an unbroken series of counts were made in Lincoln, usually by members of the Uni¬versity Place Bird Club, the Audubon Naturalist's Club, or the Wachiska chapter of the National Audubon Society. For Scottsbluff, an unbroken set of counts extends from 1949 to …
In Memorium: Charles G. Sibley, Paul A. Johnsgard
In Memorium: Charles G. Sibley, Paul A. Johnsgard
Papers in Ornithology
Dr. Charles Sibley, who passed away in April 1998, is recalled and appreciated by a former student, lab assistant, co-worker, and colleague, who first encountered him at Cornell University in 1955, beginning a 43-year working relationship.
Review Of A Guide To The Nests, Eggs, And Nestlings Of North American Birds, Paul A. Johnsgard
Review Of A Guide To The Nests, Eggs, And Nestlings Of North American Birds, Paul A. Johnsgard
Papers in Ornithology
In 1978, during a visit to England, I purchased a copy of the first edition of this book, then called a field guide. It was written by Colin Harrison, published by Collins, and produced in standard field guide size. It never was effectively distributed in North America, which was unfortunate, because it was far better than the guide to bird nests by Hal Harrison in the well-known Peterson field guide series. Not only did it illustrate the eggs of about 550 species, in color and life size, but it also offered nestling paintings of nearly 150 species, plus numerous line …