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Difference between revisions of "Short-billed Dowitcher" - BirdForum Opus

(Photo captions, copyright and dates.)
(→‎Identification: Added descriptions of nonbreeding and juvenile plumages and section on similar species.)
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[[Image:Short-billed_Dowitcher.jpg|thumb|550px|right|Winter plumage adults<br />Photo &copy; by {{user|Paul+Wiesike|Paul Wiesike}}<br />Jacksonville, [[Florida]], [[USA]], 14 November 2004]]
 
[[Image:Short-billed_Dowitcher.jpg|thumb|550px|right|Winter plumage adults<br />Photo &copy; by {{user|Paul+Wiesike|Paul Wiesike}}<br />Jacksonville, [[Florida]], [[USA]], 14 November 2004]]
 
==Identification==
 
==Identification==
*Dark brown upperparts
+
'''Breeding plumage'''
*Reddish underparts
+
*Long bill
*Tail: barred black and white
+
*Dark cap and pale supercilium
*Yellow legs
+
*Dark brown upperparts, heavily mottled
 +
*Reddish underparts, whitish belly, barred flanks and spotted sides.
 +
*Tail: barred black and white; white wedge up back.
 +
*Yellow-green legs
 +
'''Nonbreeding plumage'''
 +
*Solid gray above with white wedge up back.  Not safely distinguished from [[Long-billed Dowitcher]] except by voice.
 +
*Paler gray underparts.
 +
'''Juvenile'''
 +
*Boldly patterned and mottled upperparts
 +
*Tertials with extensive internal spots and loops lacking in Long-billed Dowitcher
 +
*Buffy underparts.
 +
====Similar species====
 +
Almost identical to [[Long-billed Dowitcher]].  Bill lengths overlap with females having longer bills than males.  Distinguished in breeding plumage by whitish belly and spotted rather than barred sides of breast.  Juveniles distinguished by heavily patterned upperparts, particularly tertials with internal markings.  In winter plumage, not safely distinguished except by voice.  Typical call a mellow whistled "tu-tu-tu."  Long-billed is more vocal often keeping contact while feeding.  Flight call a higher pitched squeaky "keeek" recalling Sanderling.
 +
 
 
==Distribution==
 
==Distribution==
 
Breeds in [[Alaska]] and [[Canada]]; winters from southern [[U.S.]] to central [[South America]].
 
Breeds in [[Alaska]] and [[Canada]]; winters from southern [[U.S.]] to central [[South America]].

Revision as of 09:28, 19 October 2018

Limnodromus griseus
Winter plumage adults
Photo © by Paul Wiesike
Jacksonville, Florida, USA, 14 November 2004

Identification

Breeding plumage

  • Long bill
  • Dark cap and pale supercilium
  • Dark brown upperparts, heavily mottled
  • Reddish underparts, whitish belly, barred flanks and spotted sides.
  • Tail: barred black and white; white wedge up back.
  • Yellow-green legs

Nonbreeding plumage

  • Solid gray above with white wedge up back. Not safely distinguished from Long-billed Dowitcher except by voice.
  • Paler gray underparts.

Juvenile

  • Boldly patterned and mottled upperparts
  • Tertials with extensive internal spots and loops lacking in Long-billed Dowitcher
  • Buffy underparts.

Similar species

Almost identical to Long-billed Dowitcher. Bill lengths overlap with females having longer bills than males. Distinguished in breeding plumage by whitish belly and spotted rather than barred sides of breast. Juveniles distinguished by heavily patterned upperparts, particularly tertials with internal markings. In winter plumage, not safely distinguished except by voice. Typical call a mellow whistled "tu-tu-tu." Long-billed is more vocal often keeping contact while feeding. Flight call a higher pitched squeaky "keeek" recalling Sanderling.

Distribution

Breeds in Alaska and Canada; winters from southern U.S. to central South America.

Taxonomy

Breeding plumage adults in flight
Photo © by Richard Stern
Brier Island, Nova Scotia, 13 July 2006

Subspecies

There are 3 subspecies1:

  • L. g. caurinus - "Pacific":
  • Southern Alaska and southern Yukon; winters coastal western US to southern Peru
  • L. g. hendersoni - "Prairie":
  • L. g. griseus - "Atlantic":

Habitat

Bogs, tidal marshes, mudflats or forest clearings.

Behaviour

Breeding

Ground-nesters, usually close to water. The nest is a shallow depression in grass or moss, lined with fine grass, twigs and leaves. The clutch consists of 3-4, olive-buff to brown eggs which are incubated by both adults for 21 days.

Diet

The diet includes insects, molluscs, crustaceans and marine worms, and also eat some plant material.

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. Chandler, R. (2009). Shorebirds of North America, Europe, and Asia: A photographic guide. Princeton Univ. Press.
  3. Jehl Jr., J. R., J. Klima, and R. E. Harris (2001). Short-billed Dowitcher (Limnodromus griseus), version 2.0. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bna.564
  4. Van Gils, J., Wiersma, P. & Kirwan, G.M. (2018). Short-billed Dowitcher (Limnodromus griseus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53885 on 19 October 2018).
  5. Wikipedia contributors. (2018, June 19). Short-billed dowitcher. In Wikipedia, The Free Encyclopedia. Retrieved 08:59, October 19, 2018, from https://en.wikipedia.org/w/index.php?title=Short-billed_dowitcher&oldid=846616555

Recommended Citation

External Links


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