Report on the Migration of Birds in the Spring and Autumn of 1881. Third Report

The report categorizes findings by species recording their observed arrival and departure dates and noting environmental conditions that impacted their movements. In particular the authors discuss how wind direction temperature and adverse weather affected the migration patterns for that year. Comparing observations with previous years the report identifies any shifts in behavior highlighting species whose migration was either delayed or advanced due to environmental factors. This third report is foundational in early ornithological research marking an important step in the scientific study of migration. The series offered one of the first systematic approaches to understanding avian movement patterns and laid the groundwork for future ecological and environmental research. It remains a valuable historical document illustrating the early methods and challenges of field-based collaborative natural history research in the 19th century.