Plight of the geese: Birds mistake Boise State's blue turf for a lake

Plight of the geese: Birds mistake Boise State's blue turf for a lake

The human eye has three kinds of cone cells: red, green and blue. According to the National Wildlife Federation, birds have four varieties: red, green, blue and one that's specifically sensitive to ultraviolet (UV) light, plus a "tiny drop of colored

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