This volume draws on research on bird species and their habitats to explain how basic principles of bird ecology and landscape ecology can help us create scientifically sound plans for protecting and restoring the rich diversity of North American birds. This edition includes an afterword that reviews literature that has appeared since the first edition was completed in 1999. This new material - on such key issues as the importance of preserving large expanses of natural habitat, the importance of maintaining early successional habitats, and the habitat requirements of neotropical migrants - shows how the research on landscape ecology of birds has shaped conservation policy more rapidly than most would have predicted.