
Dryobates nuttallii
John James Audubon, Birds of America (1827-1838). Public domain.
Nuttall's woodpecker (Dryobates nuttallii) is a species of woodpecker named after naturalist Thomas Nuttall in 1843. They are found in oak woodlands of California and are similar to the ladder-backed woodpecker in both genetics and appearance.
Source: Wikipedia
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