Habits of the Rook: Some notes on an Essex Rookery

FOR over twelve years I have kept regular notes on the habits of Rooks (Corvus f. frugilegus) at a rookery near my home in Essex. A considerable amount of information has been obtained during this period, but the following notes refer only to certain aspects of their life history, concerning which information is still especially required. By indicating which these are, the Life of the Rook, by G. ...