A falcon in the city can make a pedestrian stop cold on a busy sidewalk, head back, face to sky, to watch the raptor soar over the buildings of downtown. A hawk in the forest can silence hikers, who watch as it dive-bombs a fish, or screams from the branch of a dead birch tree.

And hundreds, thousands of hawks streaming up Lake Superior during the autumn migration -- well, that might be the most spectacular sight of all.

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