Report on the Migration of Birds in the Spring and Autumn of 1880. [Second Report]

The second report on bird migration by John Cordeaux, J. A. Harvie-Brown, and P. M. C. Kermode expands upon the foundational observations of the 1879 report, offering a detailed account of avian migration patterns in the British Isles during both the spring and autumn of 1880. This report reflects the continued efforts of the British Association for the Advancement of Science’s Migration Committee to systematically document and analyze seasonal bird movements. Drawing on an extensive network of lighthouse and lightship keepers, the report provides a wealth of data on species observed, flight paths, timings, and meteorological influences. It compares spring and autumn migration behaviors, noting variations in timing and species diversity. The authors also explore environmental factors, such as prevailing winds and visibility conditions, that impact the birds’ routes and success rates during migration.