Letters

01 August 1969
Comments Letters White-rumped Swifts in Morocco I was very interested in the recent correspondence concerning the White-rumped Swifts Apus caffer in southern Spain and particularly in P. G. C. Bmdenell-Bruce's suggestion that ornithologists visiting north-west Africa shou...
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Letters

01 June 1963
Comments Letters SIRS,--Having paid some attention to t h e manner in which t h e face of t h e Rook becomes bare, I m a y state t h a t in t h e main m y observations a n d specimens confirm Mr. Witherby's conclusions. But, with regard to this species n o t breeding in t...
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