in The Handbook to the behaviour of flocks of Coot (Fulica atra) when attacked by birds of prey. On n t h January 1953, at Cannock Reservoir, Staffordshire, I witnessed the same behaviour when a Herring Gull (Larus argentatus) dived over a scattered flock of about 300 Coot. Those on the fringe of the flock flew a few yards low over the water, with much splashing, towards the centre, so that the bi...

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