Avery, Mark. creator Leslie, Roderick. text London T. & A.D. Poyser c1990 monographic xii, 299 p. : ill. ; 24 cm. by Mark Avery and Roderick Leslie ; illustrated by Philip Snow. Includes bibliographical references (p. 274-289) and index. e-uk--- Birds Habitat Great Britain QL690.G7 A89 1990 598.252/642/0941 0856610585 91188786 UOEL 000 20141201163859.0 000