Birds
American Redstart
Setophaga ruticilla · also called American redstarts
Flitting through the forest canopy, an American redstart flashes vivid orange tail patches with every quick movement, a display that startles a hidden insect into fleeing its cover straight into the path of a bird that was watching for exactly that reaction.
Overview
The American redstart, Setophaga ruticilla, is an active, acrobatic warbler that breeds in deciduous and mixed forest across a broad range of North America before wintering in Central America, South America, and the Caribbean. Its bold tail-flashing foraging technique and dramatic difference between male and female plumage make it one of the more visually striking and behaviourally distinctive wood warblers on the continent.
Hunting by startling, not stalking
Rather than relying purely on sharp eyesight to find hidden prey, the American redstart actively flushes insects into view with its own conspicuous tail and wing flashes, turning its own boldest feature into a genuinely effective hunting tool.
Status
Least Concern — widespread and stable across suitable forest breeding habitat throughout North America and its broad wintering range.
American Redstart: common questions
Why does the American redstart flash its tail and wings so much?
An American redstart repeatedly flashes bold orange or yellow patches on its tail and wings while foraging, a behaviour thought to startle hidden insects into sudden movement, effectively revealing their position and making them easier for the bird to catch.
Why do young male American redstarts look like females?
A young male American redstart retains a female-like grey and yellow appearance for its first full year of life, only acquiring the bold black-and-orange adult plumage typical of mature males in its second year, a delayed plumage maturation shared with some other songbird species.
How does the American redstart catch its food?
The American redstart forages with quick, acrobatic movements, frequently fanning its tail and drooping its wings while actively chasing flying insects through the forest canopy, a highly active hunting style compared with more sedentary foraging birds.
Where does the American redstart live?
The American redstart breeds in deciduous and mixed forest across a broad range of North America, then migrates to winter in Central America, South America, and the Caribbean.