woodpecker
-
What is a woodpecker?
The woodpecker is any of about 180 bird species in the subfamily Picinae. They are well-known for drumming on trees to find insects in the bark and create nest holes in deadwood.
Woodpeckers live nearly worldwide, except for Australia and New Guinea, but they are most common in South America and Southeast Asia. Most remain in one place, but some migrate.
These birds spend their lives in trees, spiraling up trunks searching for insects. Some species eat fruits, berries, and tree sap. In the spring, their loud calls and drumming mark territories.
Woodpeckers' bodies have special adaptations, such as strong tail feathers, shock-absorbing skulls, and long tongues for reaching insects. They play a valuable role in controlling insects and helping to prevent tree diseases.
2 Britannica SourcesCreated from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles. -
Where do woodpeckers live?
Woodpeckers live nearly worldwide, with the exception of Australia and New Guinea, but they are most abundant in South America and Southeast Asia. Most woodpeckers are permanent residents, but some species, such as the North American yellow-bellied sapsucker and the flicker, migrate.
Most woodpeckers spend their entire lives in trees, searching for insects along trunks. Some species eat fruits and berries, and sapsuckers eat sap from certain trees. In the spring, woodpeckers make loud calls and drum on wood to mark their territories. Most are solitary or travel in pairs.
2 Britannica SourcesCreated from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles. -
How do woodpeckers find their food?
Woodpeckers are equipped with unique physical traits that enable them to locate and extract food. Their sturdy, chisel-like bills help them peck holes in trees, and their long, barbed tongues probe into these holes to capture insects. The slit-like nostrils prevent sawdust from entering while they work.
Their diet primarily consists of insects, especially ants, but can also include fruits and berries. Some species like the pileated woodpecker also eat termites and larvae.
3 Britannica SourcesCreated from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles. -
Why do woodpeckers peck on trees?
Woodpeckers peck on trees to find food, excavate nests, attract mates, and establish territories. Their specialized physical traits, including a strong bill, thick skull, and long, barbed tongue, enable them to drill into bark and extract insects.
Woodpeckers' drumming also serves as a form of communication. The behavior and sounds of the pileated woodpecker are thought to have inspired the cartoon character Woody Woodpecker.
3 Britannica SourcesCreated from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles. -
What physical features help woodpeckers survive?
Woodpeckers have several physical adaptations that help them survive:
* Beaks Woodpeckers have strong, chisel-like beaks that they use to peck holes in trees to find food or create nests.
* Feet Most woodpeckers have a yoke-toed (zygodactylous) foot, with two toes pointing forward and two pointing backward, to help them climb and maintain their position while pecking. Some species have lost the hind toe and climb with all toes facing forward, swinging one toe backward when perching.
* Tail feathers Their tail feathers are strong, which helps them to prop up their bodies as they hammer with their bills.
* Skull The woodpecker's skull is thick and curves inward at the upper base of the bill, acting as a shock absorber.
* Tongue The tongue is long, sticky, and equipped with barbs to extract insects from holes.
* Nostrils Their slit-like nostrils prevent sawdust from entering.3 Britannica SourcesCreated from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles. -
How do woodpeckers benefit forests and other wildlife?
Woodpeckers play a crucial role in forest ecosystems. As insectivores, they control insect populations, preventing tree diseases by destroying insect carriers. Woodpeckers' excavation of nesting and roosting holes provides homes for various other bird species and wildlife, who utilize these cavities after the woodpeckers are finished with them. Foresters sometimes place artificial nest boxes to compensate for the lack of woodpecker holes.
1 Britannica SourceCreated from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
woodpecker, any of about 180 species of birds that constitute the subfamily Picinae (true woodpeckers) of the family Picidae (order Piciformes), noted for probing for insects in tree bark and for chiseling nest holes in deadwood. Woodpeckers occur nearly worldwide, except in the region of Australia and New Guinea, but are most abundant in South America and Southeast Asia. Most woodpeckers are resident, but a few temperate-zone species, such as the North American yellow-bellied sapsucker (Sphyrapicus varius) and the flicker (genus Colaptes), are migratory.
Most woodpeckers spend their entire lives in trees, spiraling up the trunks in search of insects; only the few ground-feeding forms are capable of perching on horizontal branches, as passerine birds do. Most woodpeckers eat insects, but some (especially Melanerpes species) feed on fruits and berries, and sapsuckers regularly feed on sap from certain trees in some seasons. In spring the loud calls of woodpeckers, often augmented by drumming on hollow wood or occasionally on metal, are the sounds of males holding territories; at other seasons woodpeckers are usually silent. Most are not social, tending rather to be solitary or to travel in pairs.
The acorn woodpecker (M. formicivorus) is about 20 cm (8 inches) long and is found from the deciduous woodlands of western North America south to Colombia. It depends on acorns for winter food, storing a supply in holes it drills in the bark of trees. The red-headed woodpecker (M. erythrocephalus) is roughly the same size (19β23 cm [7.5β9 inches]) as the acorn woodpecker, but it is sparsely distributed in open woodlands, farmland, and orchards of temperate North America east of the Rocky Mountains.
Well-known species of Dendrocopos include the downy woodpecker (D. pubescens), only about 15 cm (6 inches) long and inhabiting the woodlands and gardens of temperate North America; the great spotted woodpecker (D. major), about 23 cm (9 inches) long and found from the forests and gardens of western temperate Eurasia south to North Africa; and the hairy woodpecker (D. villosus), which is 20β25 cm (8β9.8 inches) long and found in temperate North America.
Dryocopus includes two well-known species: the black woodpecker (D. martius), which is some 46 cm (18 inches) long and is found in coniferous and beech woodlands of temperate Eurasia, and the pileated woodpecker (D. pileatus), which is some 40β47 cm (15.5β18.25 inches) in size and inhabits mature forests of much of temperate North America.
Two species of three-toed woodpeckers make up the genus Picoides: the northern three-toe (P. tridactylus), which ranges across the subarctic Northern Hemisphere and south in some mountains, and the black-backed three-toe (P. arcticus), found across forested central Canada.
The crimson-backed woodpecker (Chrysocolaptes lucidus) is common in open woodlands from India to the Philippine Islands. The green woodpecker (Picus viridis) ranges throughout the woodlands of temperate Eurasia and south to North Africa. The deciduous forests of the southeastern United States are the habitat of the red-bellied woodpecker (Centurus carolinus).
The ivory-billed woodpecker (Campephilus principalis), noted for its size (45 cm [18 inches] long) and beauty, was historically found in Cuba and the southern United States. Although listed as critically endangered, it was believed to be extinct. In 2005, however, researchers announced that the bird had been sighted in eastern Arkansas. A subspecies, the Cuban ivory-billed woodpecker (C. principalis bairdii), is thought to be extinct, and a related species, the imperial woodpecker (C. imperialis) of Mexico, is critically endangered and possibly extinct.


" height="20" alt="HEW Logo">

