Each of these spectacular Areas listed below make up the  puzzle pieces of the 15 mile diameter official CBC birding circle assigned to us by National Audubon. The circle cover approx. 144 square miles. There are 2,060 circles in America, Canada and Mexico. In California there are 114. Sonoma Valley was one of 22 new CBC circles in the U.S. in 2005-06. These areas listed below have one leader overseeing several smaller teams of 4-7 people.  Choose any Area Map, download and zoom in! To see the bird species identified by Area for 2005 and 2006 - click here.

The Center of the Sonoma Valley Circle (Latitide/Longitude)  38.293098 and 122.503698.  The SEC  make a revised map of the entire circle adding more information including additional creeks and ponds, roads, etc. 

Adobe Area (Western Slope of Sonoma Mountain)

Glen Ellen

Highlands  (Area above the town of Sonoma)

Napa Ridge (Mayacamas Mt. Range)

Petaluma Wetlands - Tolay Lake Region Park 

Schellville

Sonoma 

Trinity- Cavedale Area

Wingo

FULL BIRDING CIRCLE 2008