South American land birds: a photographic aid to identification/
Dunning, John S., 1905-,
South American land birds: a photographic aid to identification/ John S. Dunning ; with the collaboration of Robert S. Ridgely ; sponsored by The World Wildlife Fund - Newtown Square, Pa.: Harrowood Books, 1982 - 364 p. :b ill. ; 24 cm.
Includes index p. 335
0915180219
Birds--South America--Identification
South American land birds: a photographic aid to identification/ John S. Dunning ; with the collaboration of Robert S. Ridgely ; sponsored by The World Wildlife Fund - Newtown Square, Pa.: Harrowood Books, 1982 - 364 p. :b ill. ; 24 cm.
Includes index p. 335
0915180219
Birds--South America--Identification