Bird ecology and conservation : a handbook of techniques / edited by William J. Sutherland, Ian Newton and Rhys E. Green. - Oxford : OUP, 2004. - xv, 386p : ill., maps ; 24 cm. - Techniques in ecology and conservation series ; 1 . Includes bibliographical references and index. Open access. ISBN: Subjects--Topical Terms: Birds--Conservation.Birds--Ecology.Ornithology--Methodology.