{"product_id":"observations-on-a-40-year-january-wayne-mollhoff-9781609623012","title":"Observations on a 40-Year January Bird Census in Boone County, Nebraska, 1978-2017","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. A Nebraska Ornithologists' Union Occasional Paper\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Wayne Mollhoff\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1609623010\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781609623012\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e University of Nebraska-Lincoln Libraries\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 09\/13\/2023\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 34\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.12lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 8.50h x 5.50w x 0.08d","brand":"Wayne Mollhoff","offers":[{"title":"Paperback","offer_id":46199225942271,"sku":"9781609623012","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_18225ae7-da7c-4922-a721-9b50ea8da4e4.jpg?v=1727925425","url":"https:\/\/www.whiterainbookhouse.com\/products\/observations-on-a-40-year-january-wayne-mollhoff-9781609623012","provider":"WR Book House","version":"1.0","type":"link"}