Three-striped Warbler
| Basileuterus tristriatus | Order: Passeriformes | Family: Parulidae (New World Warblers) |
Basileuterus tristriatus
Order: Passeriformes
Family: Parulidae (New World Warblers)
Costa Rican Warbler formerly was regarded as a geographically isolated subspecies of Three-striped Warbler (Basileuterus tristriatus), which is very widespread in humid montane forests of western South America.