Letters

01 October 1958 Comments Letters EGGS D I S A P P E A R I N G F R O M P E R E G R I N E E Y R I E S S I R S , -- T h e paper by D r . D . A. Ratcliffe on " B r o k e n eggs in Peregrine eyries" (antea, pp. 23-29) has greatly interested me, as it seems to throw considerable light on past ...
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Letters

01 June 1958 Comments Letters S I R S , -- U n d e r the above title (anlea, vol. L, p p . 432-434), R. Hewson has usefully drawn attention to the aerobatics-- familiar in individuals--that are sometimes performed by flocks of Ravens (Corvus corax) and has discussed questions suggeste...
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