Estimating Numbers of Terrestrial Birds.

Abstract

some chapters: Estimating relative abundance Estimating birds per unit area Comparison of methods Species variability Environmental influences Observer variability Sampling design Data analysis Overviews - Scale problems in avian censusing - Censusing and evaluation of avian habitat occupancy - Habitat correlates of bird distribution in British census plots - Surveying birds in the tropics - The usefulness of absolute ("census") and relative ("sampling" or "index") measures of abundance