Chestnut-sided Warbler

Setophaga pensylvanica

Their song is famously remembered by the mnemonic 'Please-please-please-to-meet-cha!'

Scientific name
Setophaga pensylvanica
Taxonomy
Animalia › Chordata › Aves › Passeriformes › Parulidae › Setophaga
IUCN Red List status
Least Concern
Population trend
stable
Biome
forest
Habitat
Early successional deciduous forests, scrubby second-growth, and forest edges.
Diet
Primarily insectivorous, consuming caterpillars, flies, and beetles; occasionally eats berries in winter.
Range
Eastern North America, Central Canada, Central America
Size
10-14 cm length, 19-21 cm wingspan
Lifespan
4 to 7 years
Active
diurnal
Threats
Habitat fragmentation, window collisions during migration, and pesticide exposure.
Safe to approach?
Harmless and shy. Best observed from a distance with binoculars to avoid disturbing foraging or nesting behaviors. If you find a grounded fledgling, leave it be unless it is in immediate danger; if injured, contact a local avian wildlife rehabilitator.

The chestnut-sided warbler ( Setophaga pensylvanica ) is a New World warbler. They breed in eastern North America and in southern Canada westwards to the Canadian Prairies. They also breed in the Great Lakes region and in the eastern United States.

Photo: Michael Nerrie, CC-BY, via iNaturalist

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