Trials in Flight

Every goose takes a turn at the point. Galen has several good reasons not to. His left wing flaps slower on Tuesdays. The air feels lumpy. Besides, someone has to guard the middle.

When the young Canada goose leaves Lake Simcoe on his first migration, he expects long days in the sky and perhaps a few uncomfortable turns near the front of the V. He is less prepared for violent weather, hungry predators, hunters, and the losses that can change the shape of a flock.

The journey carries Galen and...