Animalia > Chordata > Aves > Passeriformes > Sittidae > Sitta > Sitta pygmaea

Sitta pygmaea (Pygmy Nuthatch)

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Wikipedia Abstract

The pygmy nuthatch (Sitta pygmaea) is a tiny songbird, about 10 cm (4 inches) long and about 10 grams in weight. It ranges from southern British Columbia south through various discontinuous parts of the western U.S. (northwest U.S., Sierra Nevada range, southern Rockies, etc.), to central Mexico. It is usually found in pines (especially ponderosa pines), Douglas-firs, and other conifers. 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.
View Wikipedia Record: Sitta pygmaea

Infraspecies

Sitta pygmaea brunnescens
Sitta pygmaea chihuahuae
Sitta pygmaea elii
Sitta pygmaea flavinucha
Sitta pygmaea leuconucha
Sitta pygmaea melanotis
Sitta pygmaea pygmaea

EDGE Analysis

Uniqueness Scale: Similiar (0) 
3
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
22
 Unique & Vulnerable (100)
ED Score: 8.13272
EDGE Score: 2.21186
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  10.5 grams
Birth Weight [3]  1 grams
Breeding Habitat [2]  Temperate western forests, Mexican pine-oak forests
Wintering Geography [2]  Non-migrartory
Wintering Habitat [2]  Temperate western forests, Mexican pine-oak forests
Diet [4]  Carnivore (Invertebrates), Granivore
Diet - Invertibrates [4]  60 %
Diet - Seeds [4]  40 %
Forages - Canopy [4]  60 %
Forages - Mid-High [4]  40 %
Clutch Size [5]  7
Clutches / Year [3]  1
Fledging [1]  22 days
Global Population (2017 est.) [2]  3,000,000
Incubation [3]  15 days
Maximum Longevity [3]  8 years
Female Maturity [3]  1 year
Male Maturity [3]  1 year

Ecoregions

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No
Madrean Pine-Oak Woodlands Mexico, United States No

Predators

Accipiter cooperii (Cooper's Hawk)[6]
Accipiter striatus (Sharp-shinned Hawk)[6]
Pituophis catenifer (Gopher Snake)[6]
Tamiasciurus hudsonicus (red squirrel)[6]

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 5Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0