Field Guides to the Birds of Eastern North America / Western North America both written and illustrated by David Sibley, Christopher Helm, £14.99, ISBN 0713666579 and 0713666587 respectively Reviewed by David Tomlinson
THREE years ago The North American Bird Guide drew great admiration. David Sibley had single-handedly produced by far the best guide yet to North American birds, following a tradition started by Roger Tory Peterson, who pioneered field guides almost 70 years before. There was, however, one major criticism: the new Guide was too big to take into the field.
So Sibley has divided it. While the original volume…
