This short trailer gives you a taste of the full 23-minute episode.
The wetlands and grasslands of the glacier-scarred northern Great Plains are home to a staggering abundance of wildlife in spring and summer. Doug Gochfeld and Tom Johnson visit North Dakota in late spring to spend time with the striking birdlife of this Prairie Potholes region, from Wilson's Phalaropes to Yellow-headed Blackbirds to LeConte's Sparrows. In addition, they explore the impacts humans have had on this changing landscape.
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