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Description
For 40 years Wayne Mollhoff conducted a personal bird census every January. He explains: "After having run several Breeding Bird Survey routes, and participated in several Christmas Bird Counts, I became curious to see what might be found on a winter count under the more tightly controlled parameters of a census, as contrasted with Christmas counts done with variable numbers of observers."
The count was set up similarly to the USGS Breeding Bird Survey routes with 50 stops, one-half mile (800 meters) apart, all birds counted for 3 minutes, with birds counted at one stop not counted again at following stops. The census route ran from the northwest corner of Boone County, along Beaver Creek, to a point outside Albion. Counts began at local sunrise.
A total of 73 species were recorded during the 40-year census. This paper records those results and offers observations on patterns of occurrence or absence and changes in frequency.
ISBN
978-1-60962-302-9
Publication Date
9-15-2023
Publisher
Zea Books
City
Lincoln, Nebraska
Keywords
birds, counts, Nebraska, ornithology, census
Disciplines
Behavior and Ethology | Ornithology | Population Biology
Recommended Citation
Wayne J. Mollhoff, Observations on a 40-Year January Bird Census in Boone County, Nebraska, 1978–2017 (2023). Zea Books, Lincoln, NE.
Comments
Copyright © 2023 Wayne J. Mollhoff