Red-breasted nuthatch

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Red-breasted nuthatch
Sitta canadensis CT2.jpg
Female in Quebec, Canada
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Sittidae
Genus: Sitta
Species:
S. canadensis
Binomial name
Sitta canadensis
Linnaeus, 1766
Sitta canadensis map.svg
Approximate distribution map
  Year-round
  Nonbreeding

The red-breasted nuthatch (Sitta canadensis) is a small songbird. The adult has blue-grey upperparts with cinnamon underparts, a white throat and face with a black stripe through the eyes, a straight grey bill and a black crown. Its call, which has been likened to a tin trumpet, is high-pitched and nasal. It breeds in coniferous forests across Canada, Alaska and the northeastern and western United States. Though often a permanent resident, it regularly irrupts further south if its food supply fails. There are records of vagrants occurring as far south as the Gulf Coast and northern Mexico. It forages on the trunks and large branches of trees, often descending head first, sometimes catching insects in flight. It eats mainly insects and seeds, especially from conifers. It excavates its nest in dead wood, often close to the ground, smearing the entrance with pitch.

Contents

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Red-breasted nuthatch
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Red-breasted nuthatch
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Red breasted nuthatch
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Red-breasted nuthatch
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Red-breasted nuthatch
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Taxonomy

In 1760, the French zoologist Mathurin Jacques Brisson included a description of the red-breasted nuthatch in his Ornithologie based on a specimen collected in Canada. He used the French name Le torchepot de Canada and the Latin Sitta Canadensis. [2] Although Brisson coined Latin names for the species, these usually do not conform to the binomial system and none of them are recognised by the International Commission on Zoological Nomenclature. [3] In 1766, when the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been previously described by Brisson. [3] One of these was the red-breasted nuthatch. Linnaeus included a brief description and used Brisson's name, Sitta canadensis, as his binomial name. [4]

Like all nuthatches, the red-breasted nuthatch is assigned to the genus Sitta (Linnaeus, 1758), [5] a name derived from sittē (σίττη), the Ancient Greek word for the Eurasian nuthatch. The specific epithet canadensis is Neo-Latin for "belonging to Canada". [6] "Nuthatch" is a linguistic corruption of "nuthack", referring to the bird's habit of wedging nuts into cracks in tree bark and hacking at them until they break open. [7] "Red-breasted" is a reference to the rusty colour of the male's underparts. [6]

The nuthatch's habit of wedging seeds into cracks and hammering them open has given rise to its common name. Sitta canadensis 5563.JPG
The nuthatch's habit of wedging seeds into cracks and hammering them open has given rise to its common name.

In the past, the red-breasted nuthatch and four other species — the Corsican nuthatch, the Chinese nuthatch, the Algerian nuthatch and the Krüper's nuthatch — were thought to be a single species. [8] These five make up a well-defined species group known as the "Sitta canadensis group", and are sometimes considered to be a superspecies. [9] Within the species group, DNA studies have shown that the red-breasted nuthatch, the Corsican nuthatch and the Chinese nuthatch make up one clade and the Algerian nuthatch and Krüper's nuthatch make up a sister clade. [10] The red-breasted nuthatch is monotypic across its extensive range. [9]

Description

The red-breasted nuthatch is a small passerine, measuring 4.5 in (11 cm) in length, [nb 1] [12] with a wingspan of 8.5 in (22 cm) and a weight of 9.9 g (0.35 oz). [13] Its back and uppertail are bluish, and its underparts are rust-colored. It has a black cap and eye line and a white supercilium (eyebrow). Sexes are similarly plumaged, though females and youngsters have duller heads and paler underparts. [12]

Voice

The red-breasted nuthatch's call is high-pitched, nasal and weak. Transcribed as yenk or ink, [13] they have been likened to a toy tin horn [12] or a child's noisemaker. [14] Its song is a slowly repeated series of clear, nasal, rising notes, transcribed as eeen eeen eeen. [13]

Habitat and range

Though it is primarily a full-time resident of northern and subalpine conifer forests, the red-breasted nuthatch regularly migrates irruptively, with both the number migrating and the wintering locations varying from year to year. [12] They sometimes reach northern Mexico, where they are rare winter visitors to Nuevo León, Baja California Norte and south along the Pacific slope as far as Sinaloa. [15] In the eastern United States, its range is expanding southwards. [12] Though formerly resident on Isla Guadalupe, an island off the western coast of Mexico, it appears to have been extirpated there, with the last known record of the species on the island dating from 1971. There is a single vagrant record for Mexico's Isla Socorro. [15] It is an extremely rare vagrant to Europe, with two records in the western Palearctic; one bird successfully overwintered in eastern England. [16]

Feeding behavior and diet

Like all nuthatches, the red-breasted nuthatch is an acrobatic species, hitching itself up and down tree trunks and branches to look for food. [12] It goes headfirst when climbing down. It can "walk" on the underside of branches. Unlike woodpeckers and creepers, it does not use its tail as a prop while climbing. [17] It tends to forage singly or in pairs. [15]

The red-breasted nuthatch's diet changes depending on the season. In the summer, it eats mostly insects, occasionally even flycatching, while in the winter, it switches to conifer seeds. [18] At feeders, it will take sunflower seeds, peanut butter, and suet. It often wedges food pieces in bark crevices in order to break them up with the bill (as opposed to holding the food in their feet, like the black-capped chickadee does).

Breeding

The red-breasted nuthatch, like all nuthatches, is monogamous. The male courts the female with a peculiar display, lifting his head and tail while turning his back to her, drooping his wings, and swaying from side to side.

This bird excavates its own cavity nest, 1.53–37 m (5.0–121.4 ft) above ground (usually around 4.6 m (15 ft). Excavation is done by both sexes and takes one to eight weeks. [19] The pair smears sap around the entrance hole, presumably to help deter predators. [17] The nest is lined with grass, moss, shredded bark and rootlets. Nest building is done by both sexes, but mostly by females.

The female lays 2–8 eggs (usually 5–6), which are white, creamy or pinkish, and covered with reddish-brown speckles. The eggs measure 0.6–0.7 in (1.5–1.8 cm) long by 0.4–0.5 in (1.0–1.3 cm) wide. Incubation is done by the female and lasts 12–13 days. [20] The young are altricial and stay in the nest for 2–3 weeks, brooded by the female but fed by both sexes. Normally, there is only one brood per year. Lifespan is around 6 years.

Conservation status and threats

Because of its large global range and its increasing population, the red-breasted nuthatch is rated as a species of Least Concern by the International Union for Conservation of Nature. [1] In the Americas, it is protected by the Migratory Bird Treaty Act of 1918. [21]

Notes

  1. ↑ By convention, length is measured from the tip of the bill to the tip of the tail on a dead bird (or skin) laid on its back. [11]

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<span class="mw-page-title-main">White-breasted nuthatch</span> Species of bird

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<span class="mw-page-title-main">Chestnut-vented nuthatch</span> Species of bird

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The white-browed nuthatch, also known as the Victoria nuthatch, is a species of bird in the family Sittidae. It is a small nuthatch, measuring 11.5 cm (4.5 in) in length and without sexual dimorphism. Like many other nuthatches, the upperparts are gray-blue, contrasting with white underparts on the throat, cheeks, and breast and orange on the flanks, belly, and lower abdomen. Its white supercilium makes it easy to distinguish it from the white-tailed nuthatch, which is a close species in the systematic and geographical sense. Little is known about its ecology, but it feeds on small insects found among bark and lichens, and breeding occurs around April.

<span class="mw-page-title-main">Chinese nuthatch</span> Species of bird

The Chinese nuthatch or snowy-browed nuthatch is a species of bird in the family Sittidae. It is a small nuthatch, measuring 11.5 cm (4.5 in) in length. The upperparts are blue-gray and the underparts from a dull buff-grayish to a cinnamon-orange; the cheeks are white. There is a marked sexual dimorphism: the adult male is distinguished by its very black crown, while that of the female is the same blue-grey as the back, or at most dark gray when the plumage is worn. In both sexes, a dark gray eyestripe extends in front of and behind the eye, topped by a clear white supercilium separating it from the crown. The song is variable, and composed of repetitions of small invariant whistles. The species feeds mainly on insects in summer and completes its diet with seeds and fruits. The nest is generally placed in the hole of a conifer. The pairs raises one brood per year, with five or six chicks.

<span class="mw-page-title-main">Yunnan nuthatch</span> Species of nuthatch endemic to China

The Yunnan nuthatch is a bird species in the nuthatch family Sittidae. It was first described by William Robert Ogilvie-Grant in 1900 based on a male holotype. It is a small nuthatch, measuring 12 centimetres (4.7 in) in length on average and weighs between 7.5 and 13 grams. The grey-blue upperparts contrast with the light, smooth, buffy lowerparts. It has a fine white eyebrow above a black eyestripe, which is distinct when the plumage is fresh, and exhibits a small degree of sexual dimorphism. A noisy bird, it produces simple, nasal sounds, sometimes in repetitive series.

<span class="mw-page-title-main">Przevalski's nuthatch</span> Small passerine bird endemic to southeastern Tibet and west central China

Przevalski's nuthatch, originally given the nomen nudumSitta eckloni, is a bird species in the family Sittidae, collectively known as nuthatches. Long regarded as a subspecies of the white-cheeked nuthatch, it nevertheless differs significantly in morphology and vocalizations. Both S. przewalskii and S. leucopsis have been regarded as closely related to the North American white-breasted nuthatch. It is a medium-sized nuthatch, measuring about 13 cm (5 in) in length. Its upper body is a dark gray-blue or slate color, becoming dark blue-black at the crown. The cheeks and throat are a white buff-orange, turning to a rich cinnamon on the underparts that intensifies in color on the sides of the breast. Vocalizations consist of alternating series of ascending whistles and short notes.

<span class="mw-page-title-main">Giant nuthatch</span> Species of bird

The giant nuthatch is a species of bird in the family Sittidae. It is the largest of the nuthatches, measuring 19.5 cm (7.7 in) in length. Its upperparts are bluish gray, with the front being light gray, contrasting with the darker rest of the back. The bird has two very thick black eyebrow lines and light gray underparts, with whitish cheeks and throat, and a belly more or less washed with buff and cinnamon. For a nuthatch, it has a long beak and tail. The female can be distinguished from the male by its duller eye features and its upperparts having less contrast between the crown, nape, and lower back. The calls are powerful and made up of repetitions of simple patterns. The species gleans its food from the trunks and branches of trees, especially pines, and feeds on insects and berries. It nests around March, in the hole of a tree and without masking the entrance, and the nest has about three young.

References

  1. 1 2 BirdLife International (2012). "Sitta canadensis". IUCN Red List of Threatened Species . 2012. Retrieved 26 November 2013.
  2. ↑ Brisson, Mathurin Jacques (1760). Ornithologie, ou, Méthode contenant la division des oiseaux en ordres, sections, genres, especes & leurs variétés (in French and Latin). Vol. 3. Paris: Jean-Baptiste Bauche. pp. 592–594, Plate 29 fig 4. The two stars (**) at the start of the section indicates that Brisson based his description on the examination of a specimen.
  3. 1 2 Allen, J.A. (1910). "Collation of Brisson's genera of birds with those of Linnaeus". Bulletin of the American Museum of Natural History. 28: 317–335. hdl:2246/678.
  4. ↑ Linnaeus, Carl (1766). Systema naturae : per regna tria natura, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 1 (12th ed.). Holmiae (Stockholm): Laurentii Salvii. p. 177.
  5. ↑ Linnaeus, C (1758). Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata (in Latin). Holmiae. (Laurentii Salvii). p. 115. Rostrum subcultrato-conicum, rectum, porrectum: integerrimum, mandíbula superiore obtusiuscula. Lingua lacero-emarginata
  6. 1 2 Holloway, Joel Ellis (2003). Dictionary of birds of the United States: Scientific and Common Names. Portland, OR: Timber Press. p. 185. ISBN   0-88192-600-0.
  7. ↑ "Nuthatch". Merriam-Webster Online Dictionary. Merriam-Webster Online. Retrieved 10 May 2011.
  8. ↑ Elphick, Dunning and Sibley 2001, p. 435
  9. 1 2 Harrap 2008, p. 136
  10. ↑ Pasquet, Eric (January 1998). "Phylogeny of the nuthatches of the Sitta canadensis group and its evolutionary and biogeographic implications". Ibis (Abstract). 140 (1): 150–156. doi:10.1111/j.1474-919X.1998.tb04553.x.
  11. ↑ Cramp, Stanley, ed. (1977). Handbook of the Birds of Europe, the Middle East and North Africa: Birds of the Western Palearctic, Volume 1, Ostrich to Ducks. Oxford University Press. p. 3. ISBN   0-19-857358-8.
  12. 1 2 3 4 5 6 Dunn, Jon L.; Alderfer, Jonathan, eds. (2006). National Geographic Field Guide to the Birds of North America (5th ed.). Washington DC: National Geographic. p. 341. ISBN   0-7922-5314-0.
  13. 1 2 3 Sibley, David (2000). The North American Bird Guide. Mountfield, UK: Pica Press. p. 380. ISBN   1-873403-98-4.
  14. ↑ Taylor, Richard Cachor (2010). Birds of Southeastern Arizona. Olympia, WA: R. W. Morse Company. p. 275. ISBN   978-0-9640810-7-9.
  15. 1 2 3 Howell, Steve N. G; Webb, Sophie (1995). A Field Guide to the Birds of Mexico and Northern Central America. Oxford University Press. p.  553. ISBN   978-0-19-854012-0.
  16. ↑ Dye, Keith; Fiszer, Mick; Allard, Peter (2009). Birds New to Norfolk. Sheringham, UK: Wren Publishing. pp. 340–342. ISBN   978-0-9542545-3-7.
  17. 1 2 Reed 2001, p. 437
  18. ↑ Harrap, Simon; Quinn, David (1996). Tits, Nuthatches & Treecreepers. London: Christopher Helm. pp. 144–148.
  19. ↑ Reed 2001, p. 436
  20. ↑ "All About Birds: Red-breasted Nuthatch, Life History". Cornell Laboratory of Ornithology. Retrieved 26 May 2011.
  21. ↑ "Birds Protected by the Migratory Bird Treaty Act". US Fish and Wildlife Service . Retrieved 16 September 2011.

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