Letters

01 May 2000 Comments Letters The dramatic decline in the numbers of House Sparrows Passer domesticus in the centre of London over the past 20 or so years is well documented and generally accepted (Summers-Smith 1999). Indeed, the matter of the decrease has already been raised twic...
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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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