Bird Populations (Collins New Naturalist Library, Book 124)

In the latest addition to the New Naturalist series, Ian Newton explores bird populations and what causes their fluctuation – food supplies, competitors, predators, parasites, pathogens and human activity.The combination of a rapidly expanding human population, a predominantly utilitarian attitude to land, central government policy on land use and increasing mechanisation have combined to promote massive changes in land use in recent decades than at any previous comparable period. These developm…