A prothonotary warbler at Great Dismal Swamp Refuge

A bright yellow prothonotary warbler perches easily on a branch at Great Dismal Swamp National Wildlife Refuge in Virginia, thanks to a toe pattern that marks it as a passerine.

A prothonotary warbler at Great Dismal Swamp Refuge

A prothonotary warbler perches easily on a branch at Great Dismal Swamp National Wildlife Refuge in Virginia, thanks to a toe pattern that marks it as a passerine.
Image
Photo By/Credit
USFWS
Ecosystem
Wetland
Recreational Activity
Species
Media Usage Rights/License
Public Domain
Subject tags
Birds
Birdwatching
Migratory birds
Wildlife refuges