Russell Greenberg is director of the Smithsonian Migratory Bird Center. Peter P. Marra is a research scientist with the Smithsonian Environmental Research Center.

Birds of Two Worlds should be of value to anyone interested in the movement patterns of birds and other animals. -- Ian Newton Trends in Ecology and Evolution 2005 Collections strong in natural history, ecology, and bird behavior and lore will find Birds of Two Worlds an indispensable ornithological reference. The Bookwatch 2005 An important volume that will be of value to anyone interested in migratory birds and migration. -- Jason Jones Ecology 2005 An important resource for professionals and serious birders. Southeastern Naturalist 2006 This book will be of considerable interest to all those studying migrating passerines. -- Gilles Gauthier Ecoscience 2006

• ContributorsPrefaceAcknowledgments Part I: Evolutions of Migration SystemsChapter 1. The Paleoecology and Fossil History of Migratory LandbirdsChapter 2. Molecular Approaches to the Evolution and Ecology of MigrationChapter 3. Siberian Migratory DividesChapter 4. Inter- and Intrapopulation Migration PatternsChapter 5. Predicting Migratory Behavior in LandbirdsPart II: Adaptations for Two WorldsChapter 6. Migration Takes GutsChapter 7. To Be a MigrantChapter 8. Ecology and Demography of East-West Differences in Molt Scheduling of Neotropical Migrant PasserinesChapter 9. Food Limitation Among Wintering BirdsChapter 10. Behavioral and Cognitive Adaptations to Long-Distance MigrationsPart III: BiogeographyChapter 11. Ecological and Biogeographical Aspects of the Distribution of Migrants Versus Residents in European and North American Forest Bird CommunitiesChapter 12. Influence of Migrants on Temperate Bird CommunitiesChapter 13. Old World Versus New World Long-Distance Migration in Accipiters, Buteos, and FalconsChapter 14. Seasonal Distribution and Ecology of South American Austral Migrant FlycatchersChapter 15. The Temporal and Spatial Structure of the Atmosphere and Its Influence on Bird Migration StrategiesPart IV: ConnectivityChapter 16. The Importance of Understanding Migratory Connectivity and Seasonal InteractionsChapter 17. Migrants and Their ParasitesChapter 18. Molecular Genetic Approaches to Linking Breeding and Overwintering Areas in Five Neotropical Migrant PasserinesChapter 19. Flying FingerprintsPart V: Migration ItselfChapter 20. Stopover Ecology of Intercontinental MigrantsChapter 21. Fuel Storage Rates Before Northward Flights in Red Knots WorldwideChapter 22. Individual Migratory Tactics of New World Catharus Thrushes Chapter 23. Hormones and Variation in Life History Strategies of Migratory and Nonmigratory BirdsPart VI: Behavioral EcologyChapter 24. Sex Roles in MigrantsChapter 25. Spring Molt Constraints Versus Winter Territoriality Chapter 26. Ecological Correlates of Wintering Social Systems in New World and Old World Migratory PasserinesChapter 27. Correlated Evolution of Ecological Differences Among the Old World Lead Warblers in the Breeding and Nonbreeding SeasonsPart VII: Population EcologyChapter 28. Modeling Seasonal Interactions in the Population Dynamics of Migratory BirdsChapter 29. Using Remote Sensing Data to Identify Migration and Wintering Areas and to Analyze Effects of Environmental Conditions on Migratory BirdsChapter 30. How do Migration and Dispersal Interact?Chapter 31. Does Winter Food Limit Populations of Migratory Birds?Chapter 32. Long-Term Demographic Trends, Limiting Factors, and the Strength of Density Dependence in a Breeding Population of a Migratory SongbirdChapter 33. The Renaissance of Migratory Bird BiologyIndex

Russell Greenberg is director of the Smithsonian Migratory Bird Center. Peter P. Marra is a research scientist with the Smithsonian Environmental Research Center.

Birds of Two Worlds should be of value to anyone interested in the movement patterns of birds and other animals. -- Ian Newton Trends in Ecology and Evolution 2005 Collections strong in natural history, ecology, and bird behavior and lore will find Birds of Two Worlds an indispensable ornithological reference. The Bookwatch 2005 An important volume that will be of value to anyone interested in migratory birds and migration. -- Jason Jones Ecology 2005 An important resource for professionals and serious birders. Southeastern Naturalist 2006 This book will be of considerable interest to all those studying migrating passerines. -- Gilles Gauthier Ecoscience 2006

• ContributorsPrefaceAcknowledgments Part I: Evolutions of Migration SystemsChapter 1. The Paleoecology and Fossil History of Migratory LandbirdsChapter 2. Molecular Approaches to the Evolution and Ecology of MigrationChapter 3. Siberian Migratory DividesChapter 4. Inter- and Intrapopulation Migration PatternsChapter 5. Predicting Migratory Behavior in LandbirdsPart II: Adaptations for Two WorldsChapter 6. Migration Takes GutsChapter 7. To Be a MigrantChapter 8. Ecology and Demography of East-West Differences in Molt Scheduling of Neotropical Migrant PasserinesChapter 9. Food Limitation Among Wintering BirdsChapter 10. Behavioral and Cognitive Adaptations to Long-Distance MigrationsPart III: BiogeographyChapter 11. Ecological and Biogeographical Aspects of the Distribution of Migrants Versus Residents in European and North American Forest Bird CommunitiesChapter 12. Influence of Migrants on Temperate Bird CommunitiesChapter 13. Old World Versus New World Long-Distance Migration in Accipiters, Buteos, and FalconsChapter 14. Seasonal Distribution and Ecology of South American Austral Migrant FlycatchersChapter 15. The Temporal and Spatial Structure of the Atmosphere and Its Influence on Bird Migration StrategiesPart IV: ConnectivityChapter 16. The Importance of Understanding Migratory Connectivity and Seasonal InteractionsChapter 17. Migrants and Their ParasitesChapter 18. Molecular Genetic Approaches to Linking Breeding and Overwintering Areas in Five Neotropical Migrant PasserinesChapter 19. Flying FingerprintsPart V: Migration ItselfChapter 20. Stopover Ecology of Intercontinental MigrantsChapter 21. Fuel Storage Rates Before Northward Flights in Red Knots WorldwideChapter 22. Individual Migratory Tactics of New World Catharus Thrushes Chapter 23. Hormones and Variation in Life History Strategies of Migratory and Nonmigratory BirdsPart VI: Behavioral EcologyChapter 24. Sex Roles in MigrantsChapter 25. Spring Molt Constraints Versus Winter Territoriality Chapter 26. Ecological Correlates of Wintering Social Systems in New World and Old World Migratory PasserinesChapter 27. Correlated Evolution of Ecological Differences Among the Old World Lead Warblers in the Breeding and Nonbreeding SeasonsPart VII: Population EcologyChapter 28. Modeling Seasonal Interactions in the Population Dynamics of Migratory BirdsChapter 29. Using Remote Sensing Data to Identify Migration and Wintering Areas and to Analyze Effects of Environmental Conditions on Migratory BirdsChapter 30. How do Migration and Dispersal Interact?Chapter 31. Does Winter Food Limit Populations of Migratory Birds?Chapter 32. Long-Term Demographic Trends, Limiting Factors, and the Strength of Density Dependence in a Breeding Population of a Migratory SongbirdChapter 33. The Renaissance of Migratory Bird BiologyIndex

Russell Greenberg is director of the Smithsonian Migratory Bird Center. Peter P. Marra is a research scientist with the Smithsonian Environmental Research Center.

Birds of Two Worlds should be of value to anyone interested in the movement patterns of birds and other animals. -- Ian Newton Trends in Ecology and Evolution 2005 Collections strong in natural history, ecology, and bird behavior and lore will find Birds of Two Worlds an indispensable ornithological reference. The Bookwatch 2005 An important volume that will be of value to anyone interested in migratory birds and migration. -- Jason Jones Ecology 2005 An important resource for professionals and serious birders. Southeastern Naturalist 2006 This book will be of considerable interest to all those studying migrating passerines. -- Gilles Gauthier Ecoscience 2006

• ContributorsPrefaceAcknowledgments Part I: Evolutions of Migration SystemsChapter 1. The Paleoecology and Fossil History of Migratory LandbirdsChapter 2. Molecular Approaches to the Evolution and Ecology of MigrationChapter 3. Siberian Migratory DividesChapter 4. Inter- and Intrapopulation Migration PatternsChapter 5. Predicting Migratory Behavior in LandbirdsPart II: Adaptations for Two WorldsChapter 6. Migration Takes GutsChapter 7. To Be a MigrantChapter 8. Ecology and Demography of East-West Differences in Molt Scheduling of Neotropical Migrant PasserinesChapter 9. Food Limitation Among Wintering BirdsChapter 10. Behavioral and Cognitive Adaptations to Long-Distance MigrationsPart III: BiogeographyChapter 11. Ecological and Biogeographical Aspects of the Distribution of Migrants Versus Residents in European and North American Forest Bird CommunitiesChapter 12. Influence of Migrants on Temperate Bird CommunitiesChapter 13. Old World Versus New World Long-Distance Migration in Accipiters, Buteos, and FalconsChapter 14. Seasonal Distribution and Ecology of South American Austral Migrant FlycatchersChapter 15. The Temporal and Spatial Structure of the Atmosphere and Its Influence on Bird Migration StrategiesPart IV: ConnectivityChapter 16. The Importance of Understanding Migratory Connectivity and Seasonal InteractionsChapter 17. Migrants and Their ParasitesChapter 18. Molecular Genetic Approaches to Linking Breeding and Overwintering Areas in Five Neotropical Migrant PasserinesChapter 19. Flying FingerprintsPart V: Migration ItselfChapter 20. Stopover Ecology of Intercontinental MigrantsChapter 21. Fuel Storage Rates Before Northward Flights in Red Knots WorldwideChapter 22. Individual Migratory Tactics of New World Catharus Thrushes Chapter 23. Hormones and Variation in Life History Strategies of Migratory and Nonmigratory BirdsPart VI: Behavioral EcologyChapter 24. Sex Roles in MigrantsChapter 25. Spring Molt Constraints Versus Winter Territoriality Chapter 26. Ecological Correlates of Wintering Social Systems in New World and Old World Migratory PasserinesChapter 27. Correlated Evolution of Ecological Differences Among the Old World Lead Warblers in the Breeding and Nonbreeding SeasonsPart VII: Population EcologyChapter 28. Modeling Seasonal Interactions in the Population Dynamics of Migratory BirdsChapter 29. Using Remote Sensing Data to Identify Migration and Wintering Areas and to Analyze Effects of Environmental Conditions on Migratory BirdsChapter 30. How do Migration and Dispersal Interact?Chapter 31. Does Winter Food Limit Populations of Migratory Birds?Chapter 32. Long-Term Demographic Trends, Limiting Factors, and the Strength of Density Dependence in a Breeding Population of a Migratory SongbirdChapter 33. The Renaissance of Migratory Bird BiologyIndex