State of the world 's birds 2004 - Indicators for our changing world Corporate author BirdLife International Date 2004 Source IUCN (ID: MON-072050) Publisher | Place of publication BirdLife International | Cambridge, UK ISBN 0-946888-50-7 Pages 73 p. Document type Document of international organization Language English Field of application International Subject Wild species & ecosystems Keyword Policy/planning Birds Comprehensive description Wild fauna