Letters

01 July 1978
Comments Letters Diving methods of Great Northern and Black-throated Divers On inland waters, I have noticed that Great Northern Divers Gavia immer always slither under slowly when diving, whereas Black-throated G. arctica jump upwards slightly before they dive...
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Letters

01 October 1928
Comments Letters SIRS,---I read with much interest two notes on the stripping of lime twigs b y Rooks (antea, p . 36). I t would n o t be wise t o conclude t h a t every twig found in this condition had been barked b y Rooks. I have watched a squirrel stripping twigs in a...
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