mete_caro_051_mallard_usfws_l.jpeg
By Environmental Health Program
2013 (approx.)
Detailed Description
A mallard in flight. Mallards are a principal host of avian influenza viruses in nature.
Sources/Usage
Public Domain.
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GeoHealth--USGS Newsletter August 2013
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GeoHealth--USGS Newsletter August 2013
This edition of the GeoHEALTH—USGS Newsletter features recent research from the Environmental Health Toxic Substances Hydrology and Contaminant Biology Programs.