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paperback book with 128 pages incl. index. Illustrated in b/w. Clean and sound but slightly faded strip near top edge. 'This informative book provides the first detailed maps of the breeding distribution of birds in hertfordshire. The 112 species maps are plotted using the tetrad system based on the the National Grid which appears on Ordnance Survey maps.

BIRDS  ORNITHOLOGY  NATURAL  HISTORY  HERTFORDSHIRE  KEVIN  BAKER,  Birdwatching