Latin Etymology: Setophaga ("moth eating") pensylvanica ("of Pensilvania")
Chestnut-sided Warbler (Setophaga pensylvanica) at Alajuela, Costa Rica - November 2025
Featured Subspecies: N/A
Weight: 8-13g / Length: 10-14cm / Wingspan: 16-21cm
NO UK STATUS / IUCN Red List: Least Concern
A long distance migrant that breeds in South East Canada, New england and the Great Lakes before migrating to Central America from the Yucutan to Panama for Wintering. The male has an unusual colour palette for a warbler with a white underside with terracotta red under the wings, black markings and a yellow crown making it easy to distinguish from other warblers. They are primarily predators of caterpillars and fly larvae.
Related Species:
Order: Passeriformes
Family: Parulidae
Genus: Setophaga
SUBSPECIES: none - monotypic
- Sighting Locations -
COSTA RICA - Spanish - Renita de Pensilvania ("Pensilvanian Warbler")
A widespread species that Winters in most of Costa Rica except the North West.
- COSTA RICA 2025 TRIP: Seen at Alajuela
Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto
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