A chestnut-sided warbler (Setophaga pensylvanica) in fall plumage hunts for insects in a tree during fall migration

- Image ID: RKBF6J

A chestnut-sided warbler (Setophaga pensylvanica) in fall plumage hunts for insects in a tree during fall migration

Mindy Fawver / Alamy Stock Photo

Image ID: RKBF6J