BirdLife International and NatureServe (2014) Bird Species DistributionMaps of the World. 2014. Picoides tridactylus. In: IUCN 2014. The IUCN Red List of Threatened
BirdLife International and NatureServe (2014) Bird Species DistributionMaps of the World. 2014. Picoides tridactylus. In: IUCN 2014. The IUCN Red List of Threatened
BirdLife International and NatureServe (2014) Bird Species DistributionMaps of the World. 2014. Picoides tridactylus. In: IUCN 2014. The IUCN Red List of Threatened
BirdLife International and NatureServe (2014) Bird Species DistributionMaps of the World. 2014. Picoides tridactylus. In: IUCN 2014. The IUCN Red List of Threatened
BirdLife International and NatureServe (2014) Bird Species DistributionMaps of the World. 2014. Picoides tridactylus. In: IUCN 2014. The IUCN Red List of Threatened