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Vicious Woodpecker Battles Draw an Avian Audience

Vicious Woodpecker Battles Draw an Avian Audience Jim Daley The Americas’ western oak woodlands are fragmented into territories that are often fiercely contested—by groups of acorn woodpeckers. In each location, generations of the birds have transformed the oaks into granaries that store thousands of acorns. They nest in groups of breeding and nonbreeding members, which…