AlderTreeSapsucker

AlderTreeSapsucker

Observation - AlderTreeSapsucker - Global. Description: The date and location of this observation are just approximate and the photo was given me by a friend. Does anyone know what creates this pattern in bark? Could it be a sapsucker?

The date and location of this observation are just approximate and the photo was given me by a friend.
Does anyone know what creates this pattern in bark? Could it be a sapsucker?