Woodpeckers (Picidae)
Acorn Woodpecker (Melanerpes formicivorus) - HBW 7, p. 441
French: Pic glandivore
German: Eichelspecht
Spanish: Carpintero Bellotero
Taxonomy: Picus formicivorus Swainson, 1827, Temiscáltepec, Mexico.
Geographical variation clinal, and some races rather poorly defined. Proposed race martirensis (N Baja California) considered indistinguishable from bairdi. Race lineatus doubtfully distinct from albeolus. Seven subspecies currently recognized.
Subspecies and Distribution:
- bairdi Ridgway, 1881 - NW Oregon S to N Baja California.
- formicivorus (Swainson, 1827) - Arizona, New Mexico and W Texas S to SE Mexico (W of Chiapas).
- angustifrons Baird, 1870 - extreme S Baja California.
- bairdi Ridgway, 1881 - NW Oregon S to N Baja California.
- formicivorus (Swainson, 1827) - Arizona, New Mexico and W Texas S to SE Mexico (W of Chiapas).
- angustifrons Baird, 1870 - extreme S Baja California.
- albeolus Todd, 1910 - SE Mexico (E Chiapas, probably also Tabasco and Campeche), NE Guatemala and Belize.
- lineatus (Dickey & van Rossem, 1927) - Chiapas E to Guatemala and N Nicaragua.
- striatipectus Ridgway, 1874 - Nicaragua to W Panama.
- flavigula (Malherbe, 1849) - Colombia (W & C Andes and W slope of E Andes).
- Least Concern Enlarge map
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Two scenes of adults, first being an apparent territorial squabble, second being an individual removing an acorn from one "grana Locality Ventura County, California, USA (United States) (ssp bairdi)
Don DesJardin 8 March 2010 1 year ago 45 sec 4.8 -
A male pecking a trunk Locality San Miguel, Santiago de Cali, Valle del Cauca Department, Colombia (ssp flavigula)
Pere Sugranyes 2005 6 years ago 36 sec 4.8 -
A male calling Locality San Miguel, Santiago de Cali, Valle del Cauca Department, Colombia (ssp flavigula)
Pere Sugranyes 2005 6 years ago 28 sec 4.8 -
Two close-ups of a female Locality San Miguel, Santiago de Cali, Valle del Cauca Department, Colombia
Pere Sugranyes 10 July 2011 22 weeks ago 30 sec 4.7 -
An adult in the process of excavating a nest cavity in a dead walnut tree. Locality Ventura County, California, USA (United States) (ssp bairdi)
Don DesJardin 13 March 2010 1 year ago 48 sec 4.7 -
A lateral view of an adult eating an acorn placed in a colony "granary tree" earlier in the year. Locality Ventura County, California, USA (United States) (ssp bairdi)
Don DesJardin 24 October 2010 1 year ago 39 sec 4.6
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Adult storing acorns
Locality Laguna Seca Regional Park, Monterey County, California, USA (United States)
pjdunn 3 September 2008 3 days ago ADDED LAST WEEK 4 -
Individual perched on a fence rail.
Locality Savegre Mountain Hotel, San Gerardo de Dota, San José Province, Costa Rica
Miriam Bauman 3 February 2011 45 weeks ago 4 -
Perched bird at Sunny Flat Campground.
Locality Cave Creek Canyon, Chiricahua Mountains, Cochise County, Arizona, USA (United States)
Dave Rintoul 27 May 2008 32 weeks ago 3.7 -
feeding on small fruits
Locality Savegre Mountain Hotel, San Gerardo de Dota, San José Province, Costa Rica (ssp striatipectus)
Georges Olioso 5 December 2004 2 years ago 3.5 -
Acorn Woodpecker at nest entrance
Locality Santa Barbara County, California, USA (United States)
Justin Watts 28 December 2010 1 year ago 3.5 -
An Acorn Woodpecker's storage container.
Locality Lamanai, Orange Walk District, Belize
Ken Havard 22 November 2005 1 year ago 3.4
- No sound recordings available yet
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