Tree swallow nestlings (Tachycineta bicolor) in a nesting box
![Tree swallow nestlings (Tachycineta bicolor) in a nesting box](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/tree_swallow_nestlings_dsc01717_l.jpg?itok=MSwtuS86)
Detailed Description
Tree swallow nestlings (Tachycineta bicolor) in a nesting box
Sources/Usage
Public Domain.
Tree swallow nestlings (Tachycineta bicolor) in a nesting box
Public Domain.