Changes in the Abundance of British Birds [Summary only]
TDGNHAS Series III, 23 (1940-44), 135(WARNING very large file size: 40.26 MB)
Abstract
The lecturer spoke of the Grey-backed Crow, the Chough, the House-sparrow, Corncrake, Starling, Rook, etc. Various causes had been suggested but in most cases there was little definite knowledge. There was still an almost complete absence of vital statist