Observations on a 40-Year January Bird Census in Boone County, Nebraska, 1978-2017

By Wayne Mollhoff

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. A Nebraska Ornithologists' Union Occasional Paper

• Format: Paperback
• Language: English
• ISBN: 1609623010
• ISBN13: 9781609623012
• Release Date: September 2023
• Publisher: University of Nebraska-Lincoln Libraries
• Length: 34 Pages
• Weight: 0.12 lbs.
• Dimensions: 0.1" x 5.5" x 8.5"