For some birds, chancy climates mean better singers

A survey of mockingbird species links variable environment and song complexity

“You’ve got to suffer if you want to sing the blues” may apply to mockingbirds too.

VIRTUOSO The brown thrasher belongs among the most elaborate of singers in the mockingbird family. The differing shapes in the spectrogram representing song (below) show the variety of sounds in just 10 seconds of a male’s song.