Movement and Survival of British Razorbills

Abstract

This study of the results of ringing Razorbills in Britain brings further evidence of the wealth of information that can be drawn from the Bird Ringing Scheme-even when the recovery rate is as low as 3070. Records are grouped by age-classes and distance from the ringing site, and illustrate a migratory tendency in younger birds but a random dispersive movement for those of three years' old and more.