This social woodpecker with a red head and white face is found in the northwest and southwest US and into Mexico. Their complex life in large groups is not the only thing that makes them different from other woodpeckers. Acorn Woodpeckers are known for caching huge numbers of acorns in holes they drill into trees. They typically choose one large tree which becomes their larder and is known as the “granary” where they will store tens of thousands of acorns. But their preferred food is insects. They live in family groups in which the juveniles stay for several years. Their populations have been stable, but the loss of oak forests and domestic herd overgrazing in their territories, combined with competition with aggressive non-native European Starlings are affecting their ability to maintain their numbers.