Houston says it's likely northern flickers causing the problem. They're slightly bigger than a robin, he said, and need a bigger space for nesting. "Compared to the other woodpeckers ...
A hole in a building made by a woodpecker in Kamloops, B.C. (Jenifer Norwell/CBC) So, he called up Curtis Houston, who owns a birding hobby shop in town. Houston says it's likely northern flickers ...