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Ladder-backed Woodpecker

From Opus

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[[Image:Ladder-Backed_Woodpeckerdigishooter.jpg|thumb|400px|right|Male<br />Photo by {{user|digishooter|digishooter}} <br />Kelso Valley: Kern Co., [[California]], [[USA]], November 2006]] [[Image:Ladder-Backed_Woodpeckerdigishooter.jpg|thumb|400px|right|Male<br />Photo by {{user|digishooter|digishooter}} <br />Kelso Valley: Kern Co., [[California]], [[USA]], November 2006]]
-;[[:Category:Picoides|Picoides]] scalaris+;[[:Category:Picoides|Picoides]] scalaris<br />
 +''Dendrocopos scalaris; Dryobates scalaris; Picus scalaris''
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Diet includes insects and their larva, and also fruit produced by cacti. Diet includes insects and their larva, and also fruit produced by cacti.
==References== ==References==
 +#{{Ref-Clements6thAug18}}#Avibase
 +{{ref}}
==External Links== ==External Links==
-{{GSearch|Picoides+scalaris}}+{{GSearch|Woodpecker+scalaris}}
[[Category:Birds]] [[Category:Picoides]] [[Category:Birds]] [[Category:Picoides]]

Revision as of 22:56, 16 April 2019


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MalePhoto by digishooter Kelso Valley: Kern Co., California, USA, November 2006
Male
Photo by digishooter
Kelso Valley: Kern Co., California, USA, November 2006
Picoides scalaris

Dendrocopos scalaris; Dryobates scalaris; Picus scalaris


Contents

Identification

16.5 to 19 cm (6½ to 7½ inches) in length
Black and white, barred pattern on back and wings. Rump, breast and flanks speckled with black.
Adult males have a red crown patch that is smaller in immatures and lacking in adult females. The bill is very sharp, straight, and black.

Distribution

South-western United States, Mexico, and Nicaragua.

Taxonomy

FemalePhoto by bobsofpa Ash Canyon, Arizona, USA, April 2010
Female
Photo by bobsofpa
Ash Canyon, Arizona, USA, April 2010

Placed in genus Dryobates by Gill and Donsker.

Subspecies

There are 8 subspecies[1]:

  • P. s. cactophilus:
  • Arid south-western US to north-eastern Baja California and central Mexico
  • P. s. eremicus:
  • Northern Baja California
  • P. s. lucasanus:
  • Southern Baja California
  • P. s. graysoni:
  • Tres Marías Islands (off western Mexico)
  • P. s. sinaloensis:
  • Coastal western Mexico (southern Sonora to Guerrero, south-western Puebla, western Oaxaca)
  • P. s. scalaris:
  • Southern Mexico (Veracruz and Chiapas)
  • P. s. parvus:
  • North Yucatán Peninsula, Cozumel Island and Holbox Island
  • P. s. leucoptilurus:

Habitat

Dry brushy areas and thickets.

Behaviour

Breeding

They nest in cavities excavated from tree trunks. 2 and 7 plain white eggs are laid and incubated by both sexes.

Diet

Diet includes insects and their larva, and also fruit produced by cacti.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase

External Links

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