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Taxonomy:

White-headed Woodpecker, Picoides albolarvatus (Add)

Picoides albolarvatus albolarvatus (Add)
Picoides albolarvatus gravirostris (Add)

Black-backed Woodpecker, Picoides arcticus (Add)
Arizona Woodpecker, Picoides arizonae (Add)

Picoides arizonae arizonae (Add)
Picoides arizonae fraterculus (Add)
Picoides arizonae websteri (Add)

Red-cockaded Woodpecker, Picoides borealis (Add)
American Three-toed Woodpecker, Picoides dorsalis (Add)

Picoides dorsalis bacatus (Add)
Picoides dorsalis dorsalis (Add)
Picoides dorsalis fasciatus (Add)

Picoides lignarius (Add)
Picoides mixtus (Add)

Picoides mixtus berlepschi (Add)
Picoides mixtus cancellatus (Add)
Picoides mixtus malleator (Add)
Picoides mixtus mixtus (Add)

Nuttall's Woodpecker, Picoides nuttallii (Add)
Downy Woodpecker, Picoides pubescens (Add)

Picoides pubescens fumidus (Add)
Picoides pubescens gairdnerii (Add)
Picoides pubescens glacialis (Add)
Picoides pubescens leucurus (Add)
Picoides pubescens medianus (Add)
Picoides pubescens parvirostris (Add)
Picoides pubescens pubescens (Add)
Picoides pubescens turati (Add)

Ladder-backed Woodpecker, Picoides scalaris (Add)

Picoides scalaris cactophilus (Add)
Picoides scalaris eremicus (Add)
Picoides scalaris graysoni (Add)
Picoides scalaris lambi (Add)
Picoides scalaris leucoptilurus (Add)
Picoides scalaris lucasanus (Add)
Picoides scalaris parvus (Add)
Picoides scalaris scalaris (Add)
Picoides scalaris sinaloensis (Add)
Picoides scalaris soulei (Add)

Picoides stricklandi (Add)

Picoides stricklandi aztecus (Add)
Picoides stricklandi stricklandi (Add)

Eurasian Three-toed Woodpecker, Picoides tridactylus (Add)

Picoides tridactylus albidior (Add)
Picoides tridactylus alpinus (Add)
Picoides tridactylus crissoleucus (Add)
Picoides tridactylus funebris (Add)
Picoides tridactylus inouyei (Add)
Picoides tridactylus kurodai (Add)
Picoides tridactylus tianschanicus (Add)
Picoides tridactylus tridactylus (Add)

Hairy Woodpecker, Picoides villosus (Add)

Picoides villosus audubonii (Add)
Picoides villosus harrisi (Add)
Picoides villosus hyloscopus (Add)
Picoides villosus icastus (Add)
Picoides villosus jardinii (Add)
Picoides villosus maynardi (Add)
Picoides villosus orius (Add)
Picoides villosus picoideus (Add)
Picoides villosus piger (Add)
Picoides villosus sanctorum (Add)
Picoides villosus septentrionalis (Add)
Picoides villosus sitkensis (Add)
Picoides villosus terraenovae (Add)
Picoides villosus villosus (Add)