A Quantitative Study of the Nocturnal Migration of Birds

"A Quantitative Study of the Nocturnal Migration of Birds" by George H. Lowery Jr. is a scientific work examining the nighttime journeys of birds using hard numbers and careful measurements. The study kicks off by talking about how mysterious bird migration is, especially when it happens at night. Lowery points out that we've only got clues, like seeing birds in bad weather or when they crash into buildings, but not real concrete data. To truly understand what is going on, Lowery uses telescopes pointed at the moon to gather information about the numbers of birds flying, which direction they're heading, and how things like the weather might be affecting their flights. This book seeks to provide solid proof to back up ideas about how and why birds migrate under the cover of darkness.