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Pileated woodpecker

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Pileated woodpecker
Temporal range: Late Pleistocene–present
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Male (top) and female (bottom)

Secure  (NatureServe)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Piciformes
Family: Picidae
Genus: Dryocopus
Species:
D. pileatus
Binomial name
Dryocopus pileatus
The range includes the United States, east of the Mississippi river, most of lower of Canada, extending up into the Northern Rocky Mountains, and down the Pacific Coast into central California
Approximate distribution map
  Year-round
Synonyms
  • Picus pileatus Linnaeus, 1758
  • Hylatomus pileatus Linnaeus, 1758

The pileated woodpecker (/ˈpaɪlieɪtəd, ˈpɪl-/ PY-lee-ay-tid, PIL-ee-; Dryocopus pileatus) is a large, mostly black woodpecker native to North America. An insectivore, it inhabits deciduous forests in eastern North America, the Great Lakes, the boreal forests of Canada, and parts of the Pacific Coast. It is the largest confirmed extant woodpecker species in North America, with the possible exception of the ivory-billed woodpecker, which the U.S. Fish and Wildlife Service has proposed be reclassified as extinct. It is also the third largest species of woodpecker in the world, after the great slaty woodpecker and the black woodpecker. "Pileated" refers to the bird's prominent red crest, from the Latin pileatus meaning "capped".[3]

Taxonomy

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Southern Pileated Woodpecker after John White, 1585.

The English naturalist Mark Catesby described and illustrated the pileated 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 larger red-crested Wood-pecker" and the Latin Picus niger maximus capite rubro.[4] When in 1758 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the tenth edition, he included the pileated woodpecker, coined the binomial name Picus pileatus and cited Catesby's book.[5] The specific epithet pileatus is a Latin word meaning "-capped".[6] The type locality is South Carolina.[7] The pileated woodpecker is now one of six species that the International Ornithological Committee and the Clements taxonomy place in genus Dryocopus. The North American Classification Committee of the American Ornithological Society concurs for the pileated and lineated woodpeckers, the only two of the six that occur in Central and North America.[8][9][10] However, BirdLife International's Handbook of the Birds of the World (HBW) places the pileated and several others in genus Hylatomus.[11] Genus Dryocopus was introduced by the German naturalist Friedrich Boie in 1826.[12][8]

Two subspecies are recognized:[8]

  • D. p. abieticola (Bangs, 1898) – northern pileated woodpecker,[citation needed] southern Canada south through the western, north-central and northeastern United States
  • D. p. pileatus (Linnaeus, 1758) – southern pileated woodpecker,[citation needed] the southeastern United States

Description

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Plate 111 of the Birds of America by John James Audubon, depicting pileated woodpeckers (1 ♀, 3 ♂♂)

Adults are 40 to 49 cm (16 to 19 in) long, span 66 to 75 cm (26 to 30 in) across the wings, and weigh 225 to 400 g (7.9 to 14.1 oz). The average weight of females and males combined is about 277 g (9.8 oz), with males weighing about 300 g (11 oz) and females weighing about 256 g (9.0 oz) in mean body mass. The wing chord measures 21.4 to 25.3 cm (8.4 to 10.0 in), the tail measures 14.0 to 17.4 cm (5.5 to 6.9 in), the bill is 4.1 to 6.0 cm (1.6 to 2.4 in) and the tarsus measures 3.1 to 3.8 cm (1.2 to 1.5 in).[13][14][15] The northern subspecies is generally slightly larger than the southern. Pileated woodpeckers are mainly black with a red crest, and have a white line down the sides of the throat. Younger specimens tend to have less curved crests, or "mohawks" as some refer to them. They show white on the wings in flight. The flight of these birds is strong and direct, but undulates in the way characteristic of woodpeckers. Adult males have a red line from the bill to the throat; in adult females these are black.[16] Two species found in the Old World, the white-bellied woodpecker (D. javensis) and black woodpeckers (D. martius), are closely related and occupy the same ecological niche in their respective ranges that the pileated occupies in North America.[13] The only North American birds of similar plumage and size are the ivory-billed woodpecker of the southeastern United States and Cuba, and the related imperial woodpecker of Mexico.

Distribution and habitat

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The pileated woodpecker's breeding habitat is forested areas across Canada, the eastern United States, and parts of the Pacific Coast. This bird favors mature forests and heavily wooded parks. They specifically prefer mesic habitats with large, mature hardwood trees, often being found in large tracts of forest. However, they also inhabit smaller woodlots as long as they have a scattering of tall trees. Efforts to restore woodland by removing invasive honeysuckle and buckthorn seem to benefit them, as the removal of brush and shrubbery facilitates their foraging on the ground and in the lower stratum.[17] From 1966 to 2015 the population of pileated woodpecker has, on average, increased by greater than 1.5% per year throughout the northeastern U.S., the Maritimes, the Ohio River Valley, and around the Great Lakes.[18]

Behavior and ecology

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Male drilling

Pileated woodpeckers mainly eat insects, especially carpenter ants and wood-boring beetle larvae. They also eat fruits, nuts, and berries, including poison ivy berries.[19] Pileated woodpeckers often chip out large and roughly rectangular holes in trees while searching out insects, especially ant colonies.[16] They also lap up ants by reaching with their long tongues into crevices. They are self-assured on the vertical surfaces of large trees, but can seem awkward while feeding on small branches and vines. They may also forage on or near the ground, especially around fallen, dead trees, which can contain a variety of insect life. They may forage around the sides of human homes or even cars, and can be observed feeding at suet-type feeders. Although they are less likely feeder visitors than smaller woodpeckers, pileateds may regularly be attracted to them in areas experiencing harsh winter conditions.

Usually, pileated woodpeckers excavate their large nests in the cavities of dead trees. Woodpeckers make such large holes in dead trees that the holes can cause a small tree to break in half. The roost of a pileated woodpecker usually has multiple entrance holes. In April, the hole made by the male attracts a female for mating and raising their young. Once the brood is raised, the birds abandon the hole and do not use it the next year. When abandoned, these holes—made similarly by all woodpeckers—provide good homes in future years for many forest songbirds and a wide variety of other animals. Owls and tree-nesting ducks may largely rely on holes made by pileateds to lay their nests. Even mammals such as raccoons may use them. Other woodpeckers and smaller birds, such as wrens, may be attracted to pileated holes to feed on the insects found in them. Ecologically, the entire woodpecker family is important to the well-being of many other bird species. The pileated woodpecker also nests in boxes about 4.6 m (15 ft) off the ground.

call
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display drum (a short burst of 10 taps)
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A pileated woodpecker pair stays together on its territory all year round and is not migratory. They defend the territory in all seasons, but tolerate floaters during the winter.[20] When clashing with conspecifics, they engage in much chasing, calling, striking with the wings, and jabbing with the bill. Drumming is most common during courtship and to proclaim territory. Hollow trees are often used to make the most resonant sound possible. The pattern is typically a fairly slow, deep rolling that lasts about three seconds.[21]

Pileated woodpeckers have been observed to move to another site if any eggs have fallen out of the nest—a rare habit in birds. The cavity is unlined except for wood chips. Both parents incubate three to five eggs for 12 to 16 days. The average clutch size is four per nest. The young may take a month to fledge.[22] The oldest known pileated woodpecker was 12 years and 11 months old. Predators at the nest can include American and Pacific martens, weasels, squirrels, rat snakes, and gray foxes. Free-flying adults have fewer predators, but can be taken in some numbers by Cooper's hawks, northern goshawks, red-shouldered hawks, red-tailed hawks, great horned owls, bald eagles, golden eagles and barred owls.[23]

Status

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The pileated woodpecker occupies an extensive range and is quite adaptable. Its ability to survive in many wooded habitat types has allowed the species to survive human habitation of North America much better than the more specialized ivory-billed woodpecker.[citation needed] Pileated woodpeckers have a large population size, and despite being nonmigratory, are protected under the U.S. Migratory Bird Act. While the large birds control many insect populations, especially tree beetles, that may otherwise experience outbreaks; some people may consider them harmful if found on their property due to the considerable damage that pileated woodpeckers can do to trees and homes.[citation needed]


Cultural references

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Cartoonist Walter Lantz is believed to have based the appearance of his creation Woody Woodpecker on the pileated woodpecker; while patterning the call on the acorn woodpecker.[24][25]

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  • Male on a platform feeder
    Male on a platform feeder
  • Adult female at an ant-infested log
    Adult female at an ant-infested log
  • Mating pair
    Mating pair
  • Male pileated woodpecker eating suet
  • Female chicks peeking from nest cavity
    Female chicks peeking from nest cavity
  • Male in flight
    Male in flight
  • Damage to a tree by a pileated woodpecker searching for bugs, a cavity roughly 3' tall, 4-6" wide, and 8" deep (90‍×‍10-15‍×‍20 cm)
    Damage to a tree by a pileated woodpecker searching for bugs, a cavity roughly 3' tall, 4-6" wide, and 8" deep (90‍×‍10-15‍×‍20 cm)
  • Female, Glastonbury, CT USA
    Female, Glastonbury, CT USA

See also

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References

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  1. ^ BirdLife International (2016). "Hylatomus pileatus". IUCN Red List of Threatened Species. 2016: e.T22681363A92903232. doi:10.2305/IUCN.UK.2016-3.RLTS.T22681363A92903232.en. Retrieved 18 January 2023.
  2. ^ "Dryocopus pileatus". NatureServe Explorer. Retrieved 17 April 2024.
  3. ^ "Pileated woodpecker". Archived from the original on March 12, 2018.
  4. ^ Catesby, Mark (1729–1732). The Natural History of Carolina, Florida and the Bahama Islands. Vol. 1. London: W. Innys and R. Manby. p. 17, Plate 17.
  5. ^ 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.
  6. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 306. ISBN 978-1-4081-2501-4.
  7. ^ Peters, James Lee, ed. (1948). Check-List of Birds of the World. Vol. 6. Cambridge, Massachusetts: Harvard University Press. p. 154.
  8. ^ a b c Gill, F.; Donsker, D.; Rasmussen, P., eds. (January 2023). "Woodpeckers". IOC World Bird List. v 13.1. Retrieved January 31, 2023.
  9. ^ Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of birds of the world: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ retrieved November 10, 2022
  10. ^ Chesser, R. T., S. M. Billerman, K. J. Burns, C. Cicero, J. L. Dunn, B. E. Hernández-Baños, R. A. Jiménez, A. W. Kratter, N. A. Mason, P. C. Rasmussen, J. V. Remsen, Jr., D. F. Stotz, and K. Winker. 2022. Check-list of North American Birds (online). American Ornithological Society. https://checklist.aou.org/taxa
  11. ^ HBW and BirdLife International (2022) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip retrieved December 13, 2022
  12. ^ Boie, Friedrich (1826). "Generalübersicht". Isis von Oken (in German). 19. Col 977.
  13. ^ a b Woodpeckers: An Identification Guide to the Woodpeckers of the World by Hans Winkler, David A. Christie & David Nurney. Houghton Mifflin (1995), ISBN 978-0395720431
  14. ^ Bull, E. L. and J. A. Jackson (2020). Pileated Woodpecker (Dryocopus pileatus), version 1.0. In Birds of the World (A. F. Poole, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.
  15. ^ Dunning, John B. Jr., ed. (2008). CRC Handbook of Avian Body Masses (2nd ed.). CRC Press. ISBN 978-1-4200-6444-5.
  16. ^ a b Pileated Woodpecker, Nature Works
  17. ^ Garcia, Evan (7 April 2016). "More Pileated Woodpeckers: Emerald Ash Borer or Healthier Habitat?". Chicago Tonight. Retrieved 28 August 2018.
  18. ^ "Pileated Woodpecker Dryocopus pileatus". Patuxent Wildlife Research Center. U.S. Geological Survey. Retrieved 2019-01-02.
  19. ^ Beal, F.E. (1895). Preliminary report on the food of Woodpeckers. United States Department of Agriculture. Division of Ornithology and Mammalogy. Bulletin No. 7. Government Printing Office. Washington, District of Columbia. p. 32.
  20. ^ Pileated Woodpecker, Canadian Biodiversity Web Site
  21. ^ "Pileated Woodpecker". Big Woods Conservation Partnership. Cornell University. 2018. Retrieved 7 February 2022.
  22. ^ Pileated Woodpecker, Talk about Wildlife Archived July 6, 2011, at the Wayback Machine
  23. ^ "Pileated Woodpecker". Archived from the original on July 17, 2012. Retrieved June 20, 2012.
  24. ^ "Woody The Acorn (Not Pileated) Woodpecker". NPR.org. NPR. Retrieved 2011-09-14.
  25. ^ "Pileated Woodpecker". American Bird Conservancy. 29 May 2020.
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