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USGS California Clapper Rail Study

Annual Clapper Rail study procedure by USGS at Arrowhead Marsh (Oakland). My partner posted additional photos at her Flickr site.

 

 

 

Annual Clapper Rail study procedure by USGS at Arrowhead Marsh (Oakland). My partner posted additional photos at her Flickr site.

 

 

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Uploaded on January 13, 2009
Taken on January 12, 2009