then head a little further north later into the spring. Hummingbird Central tracks hummingbird migration between January and May every year, with an interactive map to show viewer-submitted ...

At the end of every summer, more than 100 million individuals sweep across North America to overwinter up to 4,750 km further south in California and Mexico. The complete migration requires an ...

The Warmth of Other Suns: The Epic Story of America ... The Great Migration is the term given by historians to the vast movement of some six million Southern blacks to the North from roughly ...