Blue-gray Gnatcatcher 8 May 2004 at Mount Diablo, Contra Costa County, CA Photo © 2004 Joseph Morlan

Today, I took my ornithology class out to Mount Diablo, east of San Francisco Bay, California where we happened upon this male Blue-gray Gnatcatcher working on its nest.

Olympus D-550z / Nikon FieldScope3ED / 30XWA / Hand-held
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