- Pygmy Nuthatch
Taxobox
name = Pygmy Nuthatch
status = LC | status_system = IUCN3.1
image_caption = California, USA.
image_width = 300px
regnum =Animal ia
phylum = Chordata
classis = Aves
ordo =Passeriformes
familia = Sittidae
genus = "Sitta"
species = "S. pygmaea"
binomial = "Sitta pygmaea"
binomial_authority = Vigors, 1839The Pygmy Nuthatch ("Sitta pygmaea") is a tinysongbird , about 10 cm (4 inches) long and about 10 grams in weight. It ranges from southernBritish Columbia south through various discontinuous parts of the western U.S. (northwest U.S., Sierra Nevada range, southern Rockies, etc), to centralMexico . It is usually found inpine s (especiallyPonderosa Pine s),Douglas-fir s, and otherconifer s. Pygmy Nuthatches clamber acrobatically in the foliage of these trees, feeding on insects and seeds; less often they creep along limbs or the trunk like bigger nuthatches.Pygmy Nuthatches nest in cavities in dead stubs of conifers, lining the bottom of the cavity with pine-cone scales, plant down, and other soft plant and animal materials. They may fill cracks or crevices around the entrance with fur; the function of this behavior is unknown. The female lays 4–9 eggs, which are white with fine reddish-brown spotting. She does most of the incubation, which lasts about 16 days. The young leave the nest about 22 days after hatching.
This species is highly gregarious. A nesting pair may have other birds as helpers. Outside the breeding season, this bird wanders in noisy flocks. It also roosts communally; over 100 birds have been seen huddled in a single tree cavity.
All plumages are similar, with a warm gray cap, blue-gray upperparts, and whitish underparts. The only feature not seen in the photograph is a whitish spot on the nape, particularly in worn plumage (summer). Vocalizations are highly varied chirps, peeps, and chattering.
This species is very similar to the
Brown-headed Nuthatch of the southeastern U.S. Their ranges have no overlap.References
* Database entry includes justification for why this species is of least concern
*
*External links
* [http://www.mbr-pwrc.usgs.gov/id/framlst/i7300id.html Pygmy Nuthatch - "Sitta pygmaea"] - USGS Patuxent Bird Identification InfoCenter
* [http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Pygmy_Nuthatch.html Pygmy Nuthatch Species Account] - Cornell Lab of Ornithology
* [http://www.sdakotabirds.com/species/pygmy_nuthatch_info.htm Pygmy Nuthatch Information and Photos] - South Dakota Birds and Birding
* [http://home.earthlink.net/~lviolett/otherbirds.html Photographs of Pygmy Nuthatches nesting in a box]
* [http://ibc.hbw.com/ibc/phtml/especie.phtml?idEspecie=7442 Pygmy Nuthatch videos] on the Internet Bird Collection
* [http://www.natureserve.org/infonatura/servlet/InfoNatura?sourceTemplate=Ltabular_report.wmt&loadTemplate=Ldetail_report.wmt&selectedReport=&summaryView=Ltabular_report.wmt&elKey=100063&paging=home&save=true&startIndex=1&nextStartIndex=1&reset=false&offPageSelectedElKey=100063&offPageSelectedElType=species&offPageYesNo=true&selectedIndexes=100063 Article & RangeMaps] InfoNatura, NatureServe
* [http://vireo.acnatsci.org/search.html?Form=Search&SEARCHBY=Common&KEYWORDS=pygmy+nuthatch&showwhat=images&AGE=All&SEX=All&ACT=All&Search=Search&VIEW=All&ORIENTATION=All&RESULTS=24 Pygmy Nuthatch photo gallery] VIREO
Wikimedia Foundation. 2010.