Flutter stutter

Research on zebra finches reveals that they can stutter

source: Matt Walker
New Scientist October 23 1999 p23

Zebra finches may repeat syllables of song a number of times before continuing with their songs, in a bird equivalent of stuttering. David Rosenfield, neurologist from Baylor College of Medicine, Houston, Texas, and his colleagues have recorded zebra finch songs and analyzed them digitally. Zebra finches may change their songs by altering syllables, deleting them, or inserting new syllables. There were some 7 per cent of the birds which stuttered regularly, and none had stuttering parents. This finding could help in understanding and treating stuttering in humans.