Tree swallow nestlings (Tachycineta bicolor) in a nesting box

Tree swallow nestlings (Tachycineta bicolor) in a nesting box

Detailed Description

Tree swallow nestlings (Tachycineta bicolor) in a nesting box

Details

Image Dimensions: 2048 x 1536

Date Taken:

Location Taken: US

Credits

U.S. Geological Survey