The British Trust for Ornithology (BTO) is an independent charitable research institute. They combine professional and citizen science to produce evidence of change in wildlife populations, particularly in birds. NHBS are proud distributors for the BTO’s publications, and to celebrate their vital conservation work we are applying a price-offer on four great titles throughout August: Flight Lines: Tracking the Wonders of Bird Migration, A Field Guide to Monitoring Nests, Garden Birds and Other Wildlife and Bird Atlas 2007-11.
