Report on the Migration of Birds in the Spring and Autumn of 1887. Ninth Report (Vol. II, No. 4.)

"Report on the Migration of Birds in the Spring and Autumn of 1887. Ninth Report" by J. A. Harvie-Brown is a scientific exploration of bird migration within the British Isles. It focuses on the observations and analysis of bird migration patterns during the spring and autumn seasons of 1887. It details the data collection efforts led by a committee from the British Association for the Advancement of Science, specifically focusing on bird sightings recorded by lighthouse keepers at various coastal locations, including detailed observations about bird migrations along the coasts of Scotland, England, and Ireland, with the goal of contributing to a broader understanding of avian migratory behavior.