Blane Klemek: Predator and prey, a delicate balance in nature
When I was employed as the manager and director of the Wetlands, Pines and Prairie Audubon Sanctuary (now called the Audubon Center of the Red River Valley and Omdahl Arboretum), which is a wildlife refuge and environmental education center near Warren, Minn., one of my responsibilities was constructing, installing and monitoring wood duck nesting boxes — also known as wood duck houses.
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