I ran outside, looked up at my roof — and saw a woodpecker drilling away at my metal chimney cap. I've seen and heard plenty of woodpeckers hammer on ... vent pipes, gutters, aluminum siding ...

The team experimented in the lab with lead, copper, steel and polyvinyl chloride (PVC) pipes, using piezoelectric accelerometer sensors to record stress wave propagation through each when struck with ...

Chimney caps, vent pipes, gutters': Why some woodpeckers are ... I've seen and heard plenty of woodpeckers hammer on trees. But never on metal. So to find out why the bird was doing this, I ...