BAC24780 Falcon, Guildford: 2004. Octavo, paperback, 425 pp., black and white photographs.<P> WAS $30. Venerable ornithologist Heintzelman updates his 1979 guide to incorporate new knowledge about raptor biology, identification, and the locations where they concentrate during their seasonal migrations. He discusses the species, identification and study, types of hawk watching, field equipment, the migration seasons, and the mechanics of flight. ISBN: 9780762726707 $15.00AUD
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