European green woodpecker to split this species into three distinct species: "P. viridis" (Linnaeus, 1758) and "P. innominatus" (Sarudny & Loudon, 1905). The Iberian green woodpecker, ("P. sharpei"), has been split by some taxonomists including the IOC. More than 75% of the range of the European green woodpecker is in Europe, where it is absent from some northern and eastern parts and from Ireland, Greenland and the Macaronesian Islands, but otherwise distributed widely. Over half of the European population is thought to be in France, Spain and Germany, with substantial numbers also in Portugal, the United Kingdom, Sweden, Russia, Croatia, Romania and Bulgaria.
Imperial woodpecker Imperial woodpecker 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 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 a similarity in appearance, to the ivory-billed woodpecker, it is sometimes called the "Mexican ivorybill", but this name is also used for the pale-billed woodpecker.