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Overview
Ivory-billed woodpecker

Ivory-billed woodpecker

Wikipedia

The ivory-billed woodpecker is a woodpecker native to the Southern United States and Cuba. Habitat destruction and hunting have reduced populations so severely that the last universally accepted sighting in the United States was in 1944, and the last universally accepted sighting in Cuba was in 1987.

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Distribution

Region

Southeastern United States and western Cuba

Typical Environment

Historically occupied extensive bottomland hardwood forests, cypress-tupelo swamps, and pine flatwoods with abundant large snags. It favored recently dead or dying trees where wood-boring beetle larvae are plentiful. In Cuba, it used mature montane and lowland forests with similar structural features. The species requires large, contiguous tracts of habitat with minimal disturbance and a high supply of storm- or fire-killed timber.

Altitude Range

Sea level to 600 m

Climate Zone

Subtropical

Characteristics

Size48–53 cm
Wing Span76–80 cm
Male Weight0.52 kg
Female Weight0.47 kg
Life Expectancy15 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

This iconic woodpecker once inhabited vast bottomland hardwood forests and cypress-tupelo swamps of the southeastern United States and western Cuba. It is famed for its loud, trumpet-like “kent” call and distinctive double-knock drumming. Reliant on large tracts of old-growth with plentiful dead and dying trees, it declined rapidly due to logging and hunting. Its continued existence remains unconfirmed, with only controversial reports since the mid-20th century.

Gallery

Bird photo
Bird photo
Bird photo
Bird photo
The contrast in plumage of the male (above) and female (below), separated by a detail of their bills

The contrast in plumage of the male (above) and female (below), separated by a detail of their bills

The original range of the ivory-billed woodpecker (white) in the United States (green)

The original range of the ivory-billed woodpecker (white) in the United States (green)

Ivory-bills exchanging places in the nest, April 1935

Ivory-bills exchanging places in the nest, April 1935

Photograph of a male ivory-bill returning to the nest in order to relieve the female, Arthur A. Allen, April 1935.

Photograph of a male ivory-bill returning to the nest in order to relieve the female, Arthur A. Allen, April 1935.

A female ivory-billed woodpecker returning to the nest, April 1935, from the Singer tract expedition of Allen, Kellogg, Tanner, and Sutton, photograph Arthur A. Allen, April 1935.

A female ivory-billed woodpecker returning to the nest, April 1935, from the Singer tract expedition of Allen, Kellogg, Tanner, and Sutton, photograph Arthur A. Allen, April 1935.

A comparison of the pileated woodpecker (top) with the ivory-billed woodpecker (bottom):[citation needed] superficial similarities of the birds result in pileated woodpeckers sometimes being mistaken for ivory-bills

A comparison of the pileated woodpecker (top) with the ivory-billed woodpecker (bottom):[citation needed] superficial similarities of the birds result in pileated woodpeckers sometimes being mistaken for ivory-bills

Caption from Project Principalis paper, 2023: Composite figure comparing the size of three species of woodpeckers to the apparent ivory-billed woodpecker. Inset species were photographed on the same tree, with the same camera in the same place but at different times. These three images were extracted from their original frames and placed as insets on a fourth frame that shows the presumed ivorybill on October 1, 2021. All woodpeckers here are depicted at the same scale in their original, unedited size. Arrows point to the location of where each bird was located on the tree. Insets include an unidentified small woodpecker (top), a pileated woodpecker (middle), and a red-headed woodpecker (bottom). The presumed ivory-billed woodpecker is circled in white without an arrow.

Caption from Project Principalis paper, 2023: Composite figure comparing the size of three species of woodpeckers to the apparent ivory-billed woodpecker. Inset species were photographed on the same tree, with the same camera in the same place but at different times. These three images were extracted from their original frames and placed as insets on a fourth frame that shows the presumed ivorybill on October 1, 2021. All woodpeckers here are depicted at the same scale in their original, unedited size. Arrows point to the location of where each bird was located on the tree. Insets include an unidentified small woodpecker (top), a pileated woodpecker (middle), and a red-headed woodpecker (bottom). The presumed ivory-billed woodpecker is circled in white without an arrow.

Painting by John James Audubon

Painting by John James Audubon

Behaviour

Temperament

elusive and wary

Flight Pattern

strong, direct flight with deep rapid wingbeats; occasionally glides between trees

Social Behavior

Typically observed singly or in mated pairs and believed to be monogamous. Nests were excavated high in large dead trees, with both sexes participating in excavation and care. Clutches were small, and territories were large, centered on areas rich in dead timber.

Migratory Pattern

Resident

Song Description

Gives a distinctive nasal, trumpet-like 'kent' note, often likened to a toy horn. Drumming consists of a powerful, resonant double knock with a brief pause between blows.

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