Counting Roosting Chimney Swifts:
Ups, Downs, Vagaries, and Disparities
After 10-12 years of watching and often counting chimney swifts entering various large chimneys to roost for the night after breeding is over and during fall migration, doing so with out using any planned scientific method, we decided to look at our eBird archived data from these counts to determine whether anything we observed could be analyzed, interpreted or construed such that these data might contribute something, if anything to the scientific literature. Issues, both positive and negative during these counts, and conclusions from the data analysis will be discussed and drawn, as simple as they may be.
Dwight retired as an R&D organic chemist from industry in 2007. Meanwhile, he became interested in field ornithology over 40 years ago. He leads bird walks for a number of groups, including the Cuyahoga Valley National Park, and organizes or participates in a number of bird censuses and breeding bird studies. He has served on the Ohio Birds Record Committee for four years and is now an eBird reviewer for three counties in Ohio. He and his wife Ann have published papers and given talks on their bird field work, historical aspects of birds, and their travels to observe birds in other countries.