Downy woodpecker, Rondeau Provincial Park, Ontario, Canada, Jan 9, 2019.
A visitor to our suet log in the backyard.
The Downy Woodpecker eats foods that larger woodpeckers cannot reach, such as insects living on or in the stems of weeds. You may see them hammering at goldenrod galls to extract the fly larvae inside.
source - https://www.allaboutbirds.org/guide/Downy_Woodpecker/