Measuring a Tundra swan

Photo By/Credit

Dewhurst, Donna A./USFWS

Date Shot/Created
07/30/2006
Media Usage Rights/License
Public Domain
Image
USGS Biologist Dan Rizzolo measures the bill length on a tundra swan, prior to banding and avian influenza sampling.
Species
Cygnus columbianus
Subject tags
Waterfowl
Birds