North American shorebirds’ migration

This video from Kansas in the USA says about itself:

Half of All North American Shorebirds Use This Rest Stop

18 November 2016

Cheyenne Bottoms is the nation’s largest inland marsh, an area of over 60 square miles. It’s also the favored resting spot of many species of migrating birds, from pelicans to 27 species of ducks.

From: AERIAL AMERICA: The Great Plains.

Wildlife researchers have long tried to understand why birds fly in flocks and how different types of flocks work. A new study from the University of North Carolina at Chapel Hill explores the mechanics and benefits of the underlying flock structure used by four types of shorebirds. Understanding more about how these birds flock moves researchers a step closer to understanding why they flock: here.

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