<p>University of Montana wildlife biology graduate student Warren Hansen has researched harlequin ducks for three field seasons.</p>
October 26, 2013
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October 26, 2013 5 a.m.
Troubled water
Polson native studies harlequin ducks' sensitivity to changing stream flows, human disturbance
GLACIER NATIONAL PARK — With their signature plumage rivaled only by the beauty of their migratory mountain homes, it’s easy to see why harlequin ducks have captured the hearts of countless birdwatchers and casual observers, alike.