The Handbook deals in considerable detail with the display of the Herring-Gull (Larus argentatus) quoting the observations of Goethe, Portielje, and Darling. The notes on Common Gull (L. canus) and Great Black-backed Gull (L. marinus) refer mainly to the minor differences observed, compared with the behaviour of the Herring-Gull. The main outline of the behaviour detailed had been noted at breedin...

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