Monarchs
By Communications and Publishing
2015 (approx.)
![Monarchs](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/JIM_7493.jpg?itok=Df6fnqKd)
Detailed Description
The Eastern, migratory population of monarch butterflies has declined by about 80 percent over the last decade.
Sources/Usage
Public Domain.