provides excellent summaries of the state of knowledge of birds as indicators for a variety of environmental changes and places this topic within the broader context of monitoring theory - Conservation Biology; ...essential reading for anyone interested in the ecology of birds, ecotoxicology or in the potential use of bioindicator organisms as monitors of man-made, and other, environmental change -TREE; Explains the principles and practices of using birds not only to monitor changes in the environment, but also to indicate which changes are significant and need to be monitored o SciTech Book News d April 1994