Red-breasted Nuthatch - Sitta canadensis
A small nuthatch 11.5 cm in length and 10 g in body mass. Adult male: the top of the head is black and is boardered below by a white superciliary stripe and a black strip extending from the base of the bill through the eye to the nape. The remaining upperparts are bluish gray. The underparts are primarily reddish-cinnamon. The adult female is similar but the top of the head is dark gray-blue, not black. The eye-stripe is never as wide or as black as the male. The underparts are paler (Ghalambor and Martin 1999)
For a comprehensive review of the conservation status, habitat use, and ecology of this and other Montana bird species, please see Marks et al. 2016, Birds of Montana.
Western Hemisphere Range
Summary of Observations Submitted for Montana
Number of Observations:
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Map Help and Descriptions
(direct evidence "B")
(indirect evidence "b")
No evidence of Breeding
(regular observations "W")
(at least one obs. "w")
(Observations spanning multiple months or years are excluded from time charts)
In the Bozeman area, vertical movements and/or migration occur April 20 to May 20 and August 1 to September 25.
Prefers forests that have a strong fir and spruce component. May also breed in mixed woodland when a strong coniferous component is associated with deciduous trees such as aspen, oak and poplar (Ghalambor and Martin 1999).
Ecological Systems Associated with this Species
- Details on Creation and Suggested Uses and Limitations
How Associations Were Made
We associated the use and habitat quality (high, medium, or low) of each of the 82 ecological systems mapped in Montana for
vertebrate animal species that regularly breed, overwinter, or migrate through the state by:
- Using personal observations and reviewing literature that summarize the breeding, overwintering, or migratory habitat requirements of each species (Dobkin 1992, Hart et al. 1998, Hutto and Young 1999, Maxell 2000, Foresman 2001, Adams 2003, and Werner et al. 2004);
- Evaluating structural characteristics and distribution of each ecological system relative to the species’ range and habitat requirements;
- Examining the observation records for each species in the state-wide point database associated with each ecological system;
- Calculating the percentage of observations associated with each ecological system relative to the percent of Montana covered by each ecological system to get a measure of “observations versus availability of habitat”.
Species that breed in Montana were only evaluated for breeding habitat use, species that only overwinter in Montana were only evaluated for overwintering habitat use, and species that only migrate through Montana were only evaluated for migratory habitat use.
In general, species were associated as using an ecological system if structural characteristics of used habitat documented in the literature were present in the ecological system or large numbers of point observations were associated with the ecological system.
However, species were not associated with an ecological system if there was no support in the literature for use of structural characteristics in an ecological system, even if
point observations were associated with that system.
High, medium, and low habitat quality was assigned based on the degree to which the structural characteristics of an ecological system matched the preferred structural habitat characteristics for each species in the literature.
The percentage of observations associated with each ecological system relative to the percent of Montana covered by each ecological system was also used to guide assignments of habitat quality.
If you have any questions or comments on species associations with ecological systems, please contact Bryce Maxell at email@example.com
or (406) 444-3655.
Suggested Uses and Limitations
Species associations with ecological systems should be used to generate potential lists of species that may occupy broader landscapes for the purposes of landscape-level planning.
These potential lists of species should not be used in place of documented occurrences of species (this information can be requested at: http://mtnhp.org/requests/default.asp
) or systematic surveys for species and evaluations of habitat at a local site level by trained biologists.
Users of this information should be aware that the land cover data used to generate species associations is based on imagery from the late 1990s and early 2000s and was only intended to be used at broader landscape scales.
Land cover mapping accuracy is particularly problematic when the systems occur as small patches or where the land cover types have been altered over the past decade.
Thus, particular caution should be used when using the associations in assessments of smaller areas (e.g., evaluations of public land survey sections).
Finally, although a species may be associated with a particular ecological system within its known geographic range, portions of that ecological system may occur outside of the species’ known geographic range.
- Adams, R.A. 2003. Bats of the Rocky Mountain West; natural history, ecology, and conservation. Boulder, CO: University Press of Colorado. 289 p.
- Dobkin, D. S. 1992. Neotropical migrant land birds in the Northern Rockies and Great Plains. USDA Forest Service, Northern Region. Publication No. R1-93-34. Missoula, MT.
- Foresman, K.R. 2001. The wild mammals of Montana. Special Publication No. 12. Lawrence, KS: The American Society of Mammalogists. 278 p.
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- Maxell, B.A. 2000. Management of Montana’s amphibians: a review of factors that may present a risk to population viability and accounts on the identification, distribution, taxonomy, habitat use, natural history, and the status and conservation of individual species. Report to U.S. Forest Service Region 1. Missoula, MT: Wildlife Biology Program, University of Montana. 161 p.
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- Commonly Associated with these Ecological Systems
Forest and Woodland Systems
Wetland and Riparian Systems
- Occasionally Associated with these Ecological Systems
Wetland and Riparian Systems
Eats mainly arboreal arthropods during the breeding season and a large number of conifer seeds outside the breeding season (Ghalambor and Martin 1999). The species is known to cache and cover conifer seeds (Hendricks 1995).
Typically only one brood per season. Female selects the nesting tree. The nests are open and built up from a variety of grasses, strips of bark and pine needles. Clutch size ranges from 5 to 8 eggs, typically six (Ghalambor and Martin 1999). Young were noted being fed in late July. Near Fortine, early young were in the nest on May 28. The earliest young have been reported out of the nest was June 15 (Weydemeyer 1975). Egg records date from May 15 to July 25.
- Literature Cited AboveLegend: View Online Publication
- Ghalambor, C. K., and T. E. Martin. 1999. Red-breasted Nuthatch (Sitta canadensis). In The birds of North America, No. 459 (A. Poole and F. Gill, Eds.). Academy of Natural Sciences of Philadelphia and American Ornithologists’ Union.
- Hendricks, P. 1995. Ground-caching and covering of food by a Red-breasted Nuthatch. Journal of Field Ornithology 66:370-372.
- Marks, J.S., P. Hendricks, and D. Casey. 2016. Birds of Montana. Arrington, VA. Buteo Books. 659 pages.
- Weydemeyer, W. 1975. Half-century record of the breeding birds of the Fortine area, Montana: Nesting data and population status. Condor 77:281-287.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
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