USGS biologists swab a hen mallard duck for avian influenza
![Mallard duck being held by scientists with gloved hands while another scientist swabs duck's cloacal.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/Mallard%20Swabbing.jpg?itok=fVPEA9S2)
Detailed Description
USGS biologists swab a hen mallard duck for avian influenza in Rio Grande County, Colorado.
Sources/Usage
Public Domain.
USGS biologists swab a hen mallard duck for avian influenza in Rio Grande County, Colorado.
Public Domain.