SDE Feature Class
bank swallow, Riparia riparia, river miles, monitoring, biota, environment, Feather River, California
This shapefile was created to assess the amount of current and recently-occupied nesting habitat for the special status species of bank swallow (California Threatened) along the Feather River that may be affected by the operations of the Oroville Facilities.
This dataset is an ArcView shapefile that provides the locations of the current bank swallow (Riparia riparia) nesting colonies along the Feather River below the Oroville Dam.
The field data was collected by Tom Boullion and Ryan Martin in June of 2002. Waypoints were taken at the axial center of the colony using a Garmin Map76 hand-held GPS unit. One exception was the colony BSW-4 which was long enough to take points at the up- and downstream ends of the colony (noted as BSW-4a and BSW-4b). The GPS unit was pre-set to decimal degrees in UTM Zone 10 NAD 83. The resulting waypoints were imported into ArcView 3.1 and plotted onto digitally ortho-rectified aerial photographs.
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|Maximum (zoomed in)||1:5,000|
|Minimum (zoomed out)||1:150,000,000|