Exploring critical linkages between migratory birds, their seasonal resources, and shifts in climate change and weather events, this book brings together research on the current state of bird migration and phenology research in North America. It discusses the relation of the climate on wintering grounds to spring migration, the relationships of migratory birds and their seasonal resources, and the nature of these relationships in the face of climate change or extreme weather events. It also examines the USA-National Phenology Network's Nature's Notebook program, and ways in which these data can be incorporated into conservation research.