Notes, Notings, and Common Refrains

When downy woodpeckers drum, it's the exact same frequency and duration as a ringing telephone... As my father discovered, groggily, early one morning when he picked up the receiver on the bedside phone only to find there was no one on the other end...

He later caught the woodpecker in the act, drumming on the domed metal lid of the barbeque grill, thus solving the mystery...