Wood Thrush

The Wood Thrush is widely regarded as one of the finest singers in North America, its rich, flute-like song a defining sound of eastern deciduous forests in summer. It is a plump, handsome thrush with warm reddish-brown upperparts, brightest on the head, and bold, round black spots scattered across a white breast and belly.

Despite its beauty and once-common status, the Wood Thrush has experienced significant population declines linked to forest fragmentation on its breeding grounds and habitat loss in its Central American wintering range, making it a species of conservation concern even though it remains widespread.

Key field marks

• Bright reddish-brown crown and nape, fading to more olive-brown on the back and rump
• Bold, large, rounded black spots covering the white breast and belly
• White eyering
• Stocky build with a relatively short tail

Similar species

• Hermit Thrush: smaller spots concentrated on the upper breast, reddish tail contrasting with olive-brown back, and habit of raising its tail.
• Veery: much less spotting, more uniformly tawny above.
• Swainson's Thrush: buffy eyering and face, finer spotting, olive-brown overall without the bright rufous head of Wood Thrush.

Habitat

Wood Thrushes require mature, moist deciduous or mixed forest with a well-developed understory and canopy cover, typically avoiding heavily fragmented woodlots.

Range

The species breeds across the eastern United States and southeastern Canada, from the Great Plains east to the Atlantic coast. It winters in the lowland forests of Central America, from southern Mexico to Panama.

Migration

Wood Thrushes are long-distance nocturnal migrants, arriving on breeding grounds in April and May and departing by September and October for wintering grounds in Central America, where deforestation poses a significant conservation threat.

Behavior

Wood Thrushes forage on the forest floor, flipping leaf litter to find insects and other invertebrates, and also take fruit, especially later in the season; they are often first detected by voice rather than sight in the shaded forest understory.

Voice

The song is a series of rich, flute-like phrases, often ending in a soft trilled flourish; thanks to a specialized voice box the bird can sing two notes simultaneously, producing a haunting, harmonic quality often cited as one of the most beautiful bird songs in North America.

Nesting

Females build a sturdy cup nest of grass, leaves, and mud, often incorporating white paper or plastic scraps, typically placed in the fork of a sapling or shrub in the forest understory. Clutches usually contain 3-4 pale blue eggs, and the species is a frequent host of Brown-headed Cowbird parasitism.