Birding Darien, Panama - 3-8 Jan18 - Muffalo's Lair
6220.bay-breasted warbler (Setophaga castanea)♀︎.immature

6220.bay-breasted warbler (Setophaga castanea)♀︎.immature

https://neotropical.birds.cornell.edu/Species-Account/nb/species/babwar/overview