Driving to work in the morning the past several weeks, there have been occasional large flocks of geese and ducks flying . In the northern U.S. it’s time for the fall waterfowl migration south. In fact, the flock sizes have decreased in the past week, and several online sources concur that waterfowl migration has peaked,  in mid December. Continue reading “The Benefit of a Cold, Dark Walk: Fall Waterfowl Migration in the Central United States”