Articles related to "Birds Know When To Migrate"

Changes in light exposure and seasonal temperature swings cause migratory birds to embark on the journey to their spring breeding grounds.

Bird migration takes birds to habitats that support their survival and/or reproductive success. But migration routes and patterns differ widely.

Centuries ago, people noticed that birds disappeared in winter. They came up with explanations that are amusing, intuitive, and curiously apt.

The reasons why so many species of birds migrate are hidden in prehistoric times. Then, as now, climate, geography, and competition all played a part.