Birds of New Zealand, Hawaii and the Central and West Pacific / Collins field guide.
This book should be regarded and treated as a field guide in which the necessary information, needed to identify a bird at the moment you observe it, is given in a condensed form. The low weight and small size thus achieved make it easy to carry the book around and consult from the field. Support of the identification of difficult species can be obtained in more detailed, regional bird books, which could be consulted at home, in vehicles, at your hotel, etc.