DrNewtons book is concerned with all aspects of population regulation indiurnal birds of prey, their social behaviour, dispersion, numbers,movements, breeding and mortality. He has drawn on his own studies inScotland and on material and investigations worldwide to produce anauthoritative and stimulating synthesis of current thinking andresearch on the ecological problems of the Falconiformes. Healso deals in detail with the effects of pesticides and otherpollutants on these birds, and with their scientific management andconservation. The authors lucid style will ensure a widereadership among research workers and the more general audience with aninterest in birds of prey. There is a full bibliography and anextensive appendix of tables.