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 February 1993
Comments Letters The Cape Clear 'Griffons' The difficulty which Griffon Vultures Gyps fulvus have in maintaining flapping flight for substantial periods over the sea makes it highly improbable that the five unidentified eagle-like birds observed flying past Cape Clear ...
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