# Chestnut-sided Warbler

*Setophaga pensylvanica*

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

- **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.

## About

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.

## Sources

- Plate: https://gaia-dex.com/species/32856d7b-0ea5-45cb-88cb-b81e3a78db5d
- iNaturalist: https://www.inaturalist.org/taxa/145239
- Wikipedia: https://en.wikipedia.org/wiki/Setophaga pensylvanica
- Conservation status: IUCN Red List category, as recorded by Gaia-Dex
- Photo: https://inaturalist-open-data.s3.amazonaws.com/photos/178846144/medium.jpeg (Michael Nerrie, CC-BY, via iNaturalist)

Habitat, diet, size and similar notes are AI-written summaries; check them against the linked sources before relying on them.