Iowa Christmas bird counts reveal changing bird populations in Burlington.
The article discusses the results of Iowa Christmas bird counts in Burlington in December 1986. The main goal was to document both common and rare bird species found in the area during that time. The researchers used the data collected to support the Iowa Ornithologists Union Quarterly field report for the winter of 1986-1987. Key findings include the identification of regular and uncommon bird species present in Burlington during the Christmas bird counts.