BIRDS OF PREY IN THE FIELD: A GUIDE TO THE BRITISH AND EUROPEAN SPECIES. By Roger Harkness and Colin Murdoch.

1971 1st edition. 8vo (134 x 204mm). Pp208. B/w photographs, drawings. Blue boards, gilt titles to advice to the observer on the identification of British and European birds of prey. ...The authors have included a valuable series of pencil drawings which have been specially prepared to assist in identification, and the photographs have been chosen to show mainly birds in flight".