Photograph Showing White-Faced Ibis Nesting
![Photograph Showing White-Faced Ibis Nesting](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/white_faced_ibis1.jpg?itok=2bfa5C7f)
Detailed Description
Photograph showing white-faced ibis nesting at Bear River Migratory Bird Refuge, Great Salt Lake, Utah. U.S. Geological Survey (USGS) scientists evaluated a nonlethal method to estimate mercury in the embryos of 23 bird species using mercury content in eggshells. This method was effective for a wide range of ages and species.
Sources/Usage
Public Domain.