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Red Headed Woodpecker

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Adult males and females are identical in size and plumage

The red-headed woodpecker (Melanerpes erythrocephalus) is a mid-sized woodpecker found in temperate North America. Its breeding habitat is open country across southern Canada and the east-central United States. It is rated as least concern on the International Union for Conservation of Nature (IUCN)'s Red List of Endangered species, having been down-listed from near threatened in 2018.[2]

The red-headed woodpecker should not be confused with the red-bellied woodpecker, which is similar in size but has a vibrant orange-red crown and nape; the red-bellied woodpecker is named for the pale reddish blush of its lower belly and has a distinctly patterned black and white back rather than the solid black one of the red-headed woodpecker.

Taxonomy

The English naturalist Mark Catesby described and illustrated the red-headed woodpecker in his book The Natural History of Carolina, Florida and the Bahama Islands, which was published between 1729 and 1732. Catesby used the English name "The Red-headed Wood-pecker" and the Latin Picus capite toto rubro.[3] In 1758, the Swedish naturalist Carl Linnaeus updated his Systema Naturae to its tenth edition. He included the red-headed woodpecker and coined the binomial name Picus erythrocephalus, citing Catesby's book.[4] The specific epithet combines the Classical Greek ἐρυθρός, eruthros, meaning "red", and κεφαλή, kephalos meaning "headed".[5] The type locality is South Carolina.[6] The red-headed woodpecker is one of 24 species now placed in the genus Melanerpes, which was introduced by the English ornithologist William John Swainson in 1832 specifically to accommodate the red-headed woodpecker.[7][8] The species is monotypic: no subspecies are recognized.[8]

Description

Adults are distinctly tricolored, with a black back and tail, a white belly and rump, and a red head and neck. The wings are black with white secondary remiges. Adult males and females are identical in plumage.[9] Juveniles have similar markings, but their heads are grey.[9] Red-headed woodpeckers are entirely crimson above their shoulders.

These are mid-sized woodpeckers. Both sexes measure from 19 to 25 cm (7.5 to 9.8 in) in length, with a wingspan of 42.5 cm (16.7 in).[10][11] They weigh from 56 to 97 g (2.0 to 3.4 oz), with an average of 76 g (2.7 oz).[12] Each wing measures 12.7–15 cm (5.0–5.9 in); the tail measures 6.6–8.5 cm (2.6–3.3 in), the bill measures 2.1–3 cm (0.83–1.18 in) and the tarsus measures 1.9–2.5 cm (0.75–0.98 in).[13] The maximum longevity in the wild is 9.9 years.[12]

This species gives a tchur-tchur call or a drum on its territory.

Behavior

The red-headed woodpecker is omnivorous, eating insects, seeds, fruits, berries, nuts, and occasionally small rodents―even the eggs of other birds.[9] About two-thirds of its diet consists of plants.[9] Red-headed woodpeckers keep food caches.[14] This behavior is only seen in three other species of woodpeckers: the acorn woodpecker, the downy woodpecker, and the red-bellied woodpecker.[14] They have been known to stuff food in tree cavities, crevices, and under tree bark.[14] This keeps them well fed throughout the year.[14]

During the breeding season, a mature male red-headed woodpecker will establish a territory and begin calling and drumming to attract a mate.[15] Once the male has paired with a female, the relationship is believed to be mostly monogamous, and that they will remain paired for multiple breeding seasons.[16][14] It is uncertain whether these relationships are truly monogamous as there have been reports of polygyny.[16] When in an established territory, the parents become very territorial.[17] They have been known to destroy nests and eggs of other birds in their territory.[17] Females choose the location of their new nesting cavity, indicating their choice by tapping on a site.[15] This site could be a natural cavity, the wintering cavity used by the male, a cavity used the season before, a fence post, utility poles, or a dead tree.[15][14] If the chosen site does not already have a nesting cavity, then both parents will drill out the nesting cavity, though the male will do most of the work.[15][16] The chosen locations of these cavities are mostly in dead trees or utility poles between 2.45 and 24.5 m (8.0 and 80.4 ft) above the ground.[9] In early May, the female lays four to seven white eggs, which are incubated for two weeks.[9] The female incubates the eggs during the day and the male takes over at night.[15] After hatching, the young are cared for by both parents.[15] The young will stay in the nest until they are old enough to fledge, which is usually after 27 to 31 days.[15] After the first brood leaves the nest, the parents may start a second brood while still taking care of the fledglings from the first brood, though the first brood will not need as much care.[15][16] This second brood may be raised in the same nesting cavity as the first, but it is common for the parents to make a fresh nesting cavity.[15] The fledglings are proficient flyers, and most are able to feed and care for themselves without too much help from the parents.[16] Most of the fledglings will disperse on their own within a couple of weeks, but if a fledgling is still in the territory after a few weeks the parents will chase them out to force them to disperse.[16] Two broods can be raised in a single nesting season.[9] By late October, northern birds begin to migrate to the southern parts of the range to overwinter. Most will return to their breeding range by late April.[18][19] Southern birds may not migrate.

Status

The red-headed woodpecker was returned to a designation of least concern on the International Union for Conservation of Nature (IUCN)'s Red List of Endangered Species in 2018, having been downgraded to near threatened in 2004 after it appeared to have experienced a 65.5% decline in population over 40 years.[1] From 1966 to 2015 there was a greater than 1.5% annual population decline throughout the Mississippi and Ohio River valleys and central Florida.[20] Most of the decline in red-headed Woodpeckers can be attributed to loss of habitat and the competition for nesting cavities with the invasive European starling.[14][21]

Increased habitat management is claimed to have helped in part in stabilizing its numbers, leading to its down-listing.[2]

The red-headed woodpecker was historically a common species in southern Canada and the east-central United States. Consistent long-term population declines have resulted in red-headed woodpecker's threatened status in Canada and several states in the US. Throughout most of its range, it inhabits areas that have been heavily altered by humans. Factors attributed to the red-headed woodpecker's decline include loss of overall habitat and, within habitats, loss of standing dead wood required for nest sites,[22] limitations in food supply,[23] and possible nest-site competition with other cavity nesters such as European starlings or red-bellied woodpeckers.[24][25]

Of the 600 Canadian Important Bird Areas, only seven report the red-headed woodpecker in their area: Cabot Head, Ontario, on the Georgian Bay side of the tip of Bruce Peninsula; Carden Plain, Ontario, east of Lake Simcoe; Long Point Peninsula and Marshes, Ontario, along Lake Erie near London, Ontario; Point Abino, Ontario, on Lake Erie near Niagara Falls; Port Franks Forested Dunes, Ontario, northeast of Sarnia on Lake Huron; Kinosota/Leifur, Manitoba, on the northwest side of Lake Manitoba south of The Narrows and east of Riding Mountain National Park; and along the South Saskatchewan River from Empress, Alberta to Lancer Ferry in Saskatchewan.[26]

Popular culture

In 1996, the United States Postal Service issued a 2-cent postage stamp depicting a perched red-headed woodpecker.[27] The stamp was discontinued at some time thereafter, but re-issued in 1999 and remained available for purchase until 2006.[28]

References

  1. ^ a b BirdLife International (2018). "Melanerpes erythrocephalus". IUCN Red List of Threatened Species. 2018: e.T22680810A131390783. doi:10.2305/IUCN.UK.2018-2.RLTS.T22680810A131390783.en. Retrieved 12 November 2021.
  2. ^ a b BirdLife International. "Red List: Northern Bald Ibis, Pink Pigeon making a comeback". BirdLife. Retrieved 2018-11-23.
  3. ^ Catesby, Mark (1729–1732). The Natural History of Carolina, Florida and the Bahama Islands. Vol. 1. London: W. Innys and R. Manby. p. 20, Plate 20.
  4. ^ Linnaeus, Carl (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1 (10th ed.). Holmiae (Stockholm): Laurentii Salvii. p. 113.
  5. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 149. ISBN 978-1-4081-2501-4.
  6. ^ Peters, James Lee, ed. (1948). Check-List of Birds of the World. Vol. 6. Cambridge, Massachusetts: Harvard University Press. p. 158.
  7. ^ Swainson, William John (1831). Richardson, John (ed.). Fauna boreali-americana, or, The zoology of the northern parts of British America : containing descriptions of the objects of natural history collected on the late northern land expeditions under command of Captain Sir John Franklin, R.N.: Part 2, The Birds. p. 316. The title page gives the date as 1831 but the volume was not actually published until the following year.
  8. ^ a b Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (2020). "Woodpeckers". IOC World Bird List Version 10.1. International Ornithologists' Union. Retrieved 27 May 2020.
  9. ^ a b c d e f g Porter, Eloise F.; James F. Parnell; Robert P. Teulings; Ricky Davis (2006). Birds of the Carolinas (Second ed.). Chapel Hill, NC: University of North Carolina Press. p. 220. ISBN 978-0-8078-5671-0.
  10. ^ Red-headed Woodpecker. All About Birds.
  11. ^ Red-headed woodpecker. biokids.umich.edu
  12. ^ a b Wasser, D. E.; Sherman, P. W. (2010). "Avian longevities and their interpretation under evolutionary theories of senescence". Journal of Zoology. 280 (2): 103. doi:10.1111/j.1469-7998.2009.00671.x.
  13. ^ Winkler, Hans; Christie, David A. and Nurney, David (1995) Woodpeckers: An Identification Guide to the Woodpeckers of the World, Houghton Mifflin, ISBN 978-0-395-72043-1
  14. ^ a b c d e f g "Red-headed Woodpecker". American Bird Conservancy. Retrieved 2022-03-02.
  15. ^ a b c d e f g h i "Red-headed Woodpecker". Audubon. 2014-11-13. Retrieved 2022-03-02.
  16. ^ a b c d e f Axley, Elizabeth J. "Melanerpes erythrocephalus (red-headed woodpecker)". Animal Diversity Web. Retrieved 2022-03-02.
  17. ^ a b "Creature Feature: The Striking Red-headed Woodpecker". Forest Preserve District of Will County. Retrieved 2022-03-02.
  18. ^ Henninger, W.F. (1906). "A preliminary list of the birds of Seneca County, Ohio" (PDF). Wilson Bulletin. 18 (2): 47–60.
  19. ^ Ohio Ornithological Society (2004): Annotated Ohio state checklist Archived 2004-07-18 at the Wayback Machine.
  20. ^ "Red-headed Woodpecker Melanerpes erythrocephalus BBS Trend Map, 1966 - 2015". Patuxent Wildlife Research Center. USGS. Retrieved 2019-05-24.
  21. ^ "The Red-headed Woodpecker Doesn't Make Sense". Audubon. 2017-10-13. Retrieved 2022-03-02.
  22. ^ Smith, K. G., J. H. Withgott, and P. G. Rodewald. (2000). Red-headed Woodpecker (Melanerpes erythrocephalus). The Birds of North America Online (A. Poole, Ed.). Cornell Lab of Ornithology; Retrieved from the Birds of North America Online, Ithaca.
  23. ^ Ontario Partners in Flight. (2008). Ontario Landbird Conservation Plan: Lower Great Lakes/St. Lawrence Plain, North American Bird Conservation Region 13. Ontario Ministry of Natural Resources, Bird Studies Canada, Environmental Canada. Draft Version 2.0.
  24. ^ Ingold, D. J. (1989). "Nesting phenology and competition for nest sites among Red-headed and Red-bellied Woodpeckers and European Starlings". Auk. 106: 209–217.
  25. ^ Ingold, D. J. (1994). "Influence of nest-site competition between European Starlings and woodpeckers". Wilson Bulletin. 106: 227–241.
  26. ^ Important Bird Area Canada, Site Catalogue Query
  27. ^ "America's 1996 Stamps Program (1996)". Archived from the original on 2007-09-29. Retrieved 2006-01-31.
  28. ^ USA Philatelic (2006). "Red-headed Woodpecker". USA Philatelic. 11 (1): 31.

Further reading

External links

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