Pairs of magpie-larks that duet with split-second timing are warning that they’ll really kick feathers if another bird attacks, according to new tests. Recordings of precise duets alarmed other magpie ...

The meadowlark’s reveling song rolls across prairies and fields with a fluted melody, as if singing "spring-of-the-year." Early European settlers gazing over May’s serene meadows in the New World must ...