butterfly
By Wetland and Aquatic Research Center
2017 (approx.)
![butterflies in exposure cages](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Barger_with%20Carla.jpg?itok=eEeuWC7K)
Detailed Description
U.S. Geological Survey scientists Tim Bargar and Carla Weiser placing butterflies into an exposure cage for field studies on the National Key Deer Wildlife Refuge.
Sources/Usage
Public Domain.