Acorn Woodpecker (Melanerpes formicivorus bairdi)
Sunol, California, USA
Nikon F, 500mm f/8.0 Reflex-Nikkor
© Douglas Herr

Acorn Woodpecker (Melanerpes formicivorus bairdi)
Sunol, California, USA
Nikon F, 500mm f/8.0 Reflex-Nikkor
© Douglas Herr