The Acorn Woodpecker (Picus formicivorus) is known to store acorns in holes excavated in dead trees. It is not often reported that other woodpeckers exhibit storage behavior.
Mel and Bob Schultz, of Auburn, Lee County, Alabama, told me of woodpeckers storing acorns at their home. On 25 October 1990, Bob opened their door and found a small pile of water oak (Quercus nigra) acorns on the threshold.
Author: Julian L. Dusi
Volume Number: 43 Year Published: 1997
Issue Number: 1
Page Number: 49
Link to article: http://birdlife.aosbirds.org/1997/Vol. 43 No 1 1997_p49.pdf
Link to the full issue of BirdLife: http://birdlife.aosbirds.org/1997/Vol. 43 No 1 1997.pdf