Acorn Woodpecker

Melanerpes formicivorus

The acorn woodpecker is a medium-sized woodpecker with a length of around 20 cm, and an average weight of 85 g. It is found across Central America, as well as North into the western United States and South into parts of Colombia.

Acorn woodpecker holding a nut in its beak on the campus of California State University, Chico. Photo shared on Wikipedia by Frank Schulenburg.
Acorn woodpecker holding a nut in its beak on the campus of California State University, Chico. Photo shared on Wikipedia by Frank Schulenburg.
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Community Sightings

Recent observations from the iNaturalist community

Acorn Woodpecker observed by gabd
Jan 15, 2026
California, US
bygab
Research Grade
· 1 ID
Acorn Woodpecker observed by maddy_wilkens
Jan 15, 2026
Orange, CA 92869, USA
bymaddy_wilkens
Research Grade
· 1 ID
Acorn Woodpecker observed by teachingalex
Jan 15, 2026
Menlo Park
byteachingalex
Research Grade
· 1 ID
Pacific Acorn Woodpecker observed by billpalmer
Jan 15, 2026
Black Canyon Rd, Ramona, CA 92065, USA
byBill Palmer
Research Grade
· 1 ID
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