September 1971 – vol. 64, issue 9–420 Since 1937, observations on Buzzards Buteo buteo breeding within ten miles of Sedbergh, Yorkshire, have been recorded by the Sedgwick Society of Sedbergh School. The present paper shows the results of an analysis of these records, supplemented by my own observations during 1962-66. It examines aspects of the breeding biology, in particular territorial behaviour and breeding success in relation to ... This article is only available to registered users.To read more, please log in or purchase a subscription.