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Campephilus imperialis, Print, The imperial woodpecker (Campephilus imperialis) is a species of bird, a member of the woodpecker family Picidae. The genus Campephilus is essentially a tropical one, embracing 13 species, including the imperial woodpecker. If it is not extinct, it is the world's largest woodpecker species, at 56–60 cm (22–23.5 in) long. Researchers have discovered that the imperial woodpecker has slow climbing strides and a fast wing-flap rate compared with other woodpeckers. Owing to its close taxonomic relationship, and its similarity in appearance, to the ivory-billed woodpecker, it is sometimes called the Mexican ivory-billed woodpecker, but this name is also used for the extant pale-billed woodpecker (Campephilus guatemalensis). The large and conspicuous bird has long been known to the native inhabitants of Mexico and was called cuauhtotomomi in Nahuatl, uagam by the Tepehuán, and cumecócari by the Tarahumara., 1700-1880