
With Paul A. Johnsgard, we follow the migration of the sandhill cranes from the American Southwest to their Alaskan breeding grounds and back again, an annual pattern that has persisted over millions of years. By selecting four historic time frames of the migration between 1860...


With Paul Johnsgard, we follow the annual migration of the sandhill cranes from the American Southwest to their Alaskan mating grounds and then home again. It is a flight unaltered in nearly ten million years. By presenting various cycles of the migration in four time periods...