Brown Thrasher

The Brown Thrasher is a large, long-tailed songbird, warm reddish-brown to rufous above with bold, heavy dark streaking on a whitish to buffy breast and belly. It has two white wing bars, a fairly long, slightly downcurved bill, and striking bright yellow eyes that stand out against its face. The tail is notably long, often held at an angle as the bird moves through dense cover.

A relative of mockingbirds and catbirds, the Brown Thrasher is renowned for having one of the largest song repertoires of any North American bird, often singing long strings of phrases, each typically repeated twice, from a high, exposed perch.

Key Field Marks

• Rich reddish-brown to rufous upperparts
• Heavy dark streaking on a whitish or buffy breast and belly
• Two white wing bars
• Long tail and slightly downcurved bill; bright yellow eyes

Similar Species

• Wood Thrush: much smaller, with rounder spotting (not streaking) on the breast and a shorter tail, and dark (not yellow) eyes.
• Fox Sparrow: smaller, with a shorter tail and stubbier bill, lacking the thrasher's slender downcurved bill and bright yellow eye.
• Long-billed Thrasher (south Texas): very similar but has a longer, more sharply curved bill and grayer face; ranges overlap only in a small area of south Texas.

Habitat

Brown Thrashers favor dense thickets, hedgerows, shrubby fields, woodland edges, and overgrown gardens, staying close to heavy cover.

Range

They breed across most of the central and eastern United States and southern Canada, and winter mainly in the southeastern United States.

Migration

Northern and interior populations are migratory, moving south for winter, while many populations in the southeastern U.S. are year-round residents.

Behavior

Brown Thrashers are often secretive, foraging on the ground in leaf litter and dense cover, using their bill to vigorously toss aside leaves in search of food (the sweeping, "thrashing" motion that gives the family its name), but males sing conspicuously from high, exposed perches.

Voice

The song consists of a long series of varied musical phrases, most notably delivered in pairs (each phrase typically sung twice before moving to the next), and the species is estimated to have one of the largest song repertoires of any North American bird, with over a thousand distinct phrase types documented.

Feeding

They eat a wide variety of insects and other invertebrates gleaned or dug from leaf litter, along with berries and fruit, especially in fall and winter.

Nesting & Breeding

Brown Thrashers build a bulky cup nest low in dense shrubs, tangles, or occasionally on the ground, typically laying 2-6 eggs. They can be aggressive in defending the nest against intruders, including larger animals.