Look up when you see fresh wood chips on the snow.
#PileatedWoodpecker
#woodpecker #bird #keweenaw #michigan
@fatamorgana Those are relatively big holes. Is it making a (narrow) house in there or..?
@trinsec
Usually the tree is already dead or at least severely suffering from a bug infestation. Happily the birches and aspens have suckers and clones that replace the dying trunk.
@fatamorgana That doesn't look like it's good for the tree...