Bøger af P. Berthold

If it is true that science proceeds from a romantic through a scientific to a technological stage, then research on bird orientation is certainly on its move from its first to its second grade, and recent developments in radiotelemetry and satellite tracking of migrating birds might already indicate the advent of the third stage.

This volume fills a real gap. Before now there existed no compilation to summarize the enormous wealth of data and hypotheses elaborated in the huge research field on the control mechanisms which are involved in bird migration. This volume takes into consideration all aspects of controlling factors since experimentation began in 1925.