Artists tell us that parlaying cold air temperature with a blanket of snow creates an illusion known as  "blue sheen." This great blue heron left the shallow waters of White River (north of Indianapolis) to try a frigid hunt for small rodents on the shore. The great blue characteristically is a shallow water hunter for small fish and aquatic life . . . But when ice covers the shallows the great blue tries shoreline hunting--any port in a storm.
 

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