Campephilus Species

There are either 11 or 12 Campephilus species depending on how the Ivory-billed Woodpecker is classified.  For more details, see a separate post at this link.

RANGE MAPS

Click on a species name to see its range map at Avibase, courtesy of NatureServe.

Cream-backed Woodpecker (Campephilus leucopogon)

Crimson-bellied Woodpecker (Campephilus heamatogaster)

Crimson-crested Woodpecker (Campephilus melanoleucos)

Cuban Ivory-billed Woodpecker (Campephilus principalis bairdii)

Guayaquil Woodpecker (Campephilus gayaquilensis)

Imperial Woodpecker (Campephilus imperialis)

Ivory-billed Woodpecker (Campephilus principalis)

Magellanic Woodpecker (Campephilus magellanicus)

Pale-billed Woodpecker (Campephilus guatemalensis)

Powerful Woodpecker (Campephilus pollens)

Red-necked Woodpecker (Campephilus rubricollis)

Robust Woodpecker (Campephilus robustus)

Various other sites offer the range map and other species information for each Campephilus woodpecker.   See, for example, this page at Xeno-canto:

Species Overview page for the Crimson-bellied Woodpecker

Campephilus Nomenclature

For a most incredibly detailed resource on Campephilus woodpecker nomenclature, visit Zoonomen's Zoological Nomenclature Resource at this link.   (It will take some searching to find "campephilus" there.  Select PICIFORMES in the left frame, and then Campephilus will appear near the bottom of the large frame).

Also, you can view a nice, and even more user-friendly, presentation of Campephilus taxonomic hierarchy and nomenclature drawn from Zoonomen at this site:

Integrated Taxonomic Information System

Campephilus Subspecies

At Avibase, the Cuban Ivory-billed Woodpecker is listed as a subspecies of the US Ivory-billed Woodpecker along with several other Campephilus subspecies.  Follow this logo link, then enter "Campephilus" in the search box to retrieve the list with subspecies:

WolframAlpha on Campephilus Woodpeckers

Here is an image from the Ivory-billed Woodpecker (Campephilus principalis) search result from Wolfram Alpha's computational knowledge search engine that details Campephilus taxonomy.

Taxonomic network:

http://www.wolframalpha.com/input/?i=ivory-billed+woodpecker
Source:  Wolfram Alpha LLC.  2010.  Wolfram|Alpha.
(accessed February 20, 2010).

By the way, if you've never entered your birth day, month and year into Wolfram Alpha, you may want to try it out here.

A Fossil Campephilus Species

In his book In Search of the Ivory-billed Woodpecker, Jerome A. Jackson relates that a fossil species was described as Campephilus dalquesti by Pierce Brodkorb, an American ornithologist and paleontologist.  This fossil species was discovered in Scurry County in central Texas, and dated to the late Pliocene epoch.

I wonder what C. dalquesti looked like.   Maybe a bit like this dino-bird!?  At least the colors look right. The dino-bird portrayed below is Anchiornis huxleyi - you can find more info here.

Check out the amazing video at this link:

Finding Dino Color In Fossil Feathers

Ivory-billed Woodpecker Classification

There are either 11 or 12 Campephilus species depending on how the Ivory-billed Woodpecker is classified.  Scientists who analyzed mitochondrial DNA of museum specimens reported in 2006 that their data suggested that the Cuban Ivory-billed Woodpecker and the US Ivory-billed Woodpecker should be considered as separate species in Mid-Pleistocene divergence of Cuban and North American ivory-billed woodpeckers by Robert C. Fleischer, et al., Biol Lett. 2006 September 22; 2(3): 466–469.  Published online 2006 May 16. doi: 10.1098/rsbl.2006.0490.  

Historically, they had been considered to be the same species. 

The American Ornithologists' Union Committee on Classification and Nomenclature is the ultimate authority on the issue, according to the issue of BirdWatch at this link.