McAuley and Soo-Eun Chang has conducted a study that got reported as "Stuttering may be more than a speech problem. For the first time, researchers have found that children who stutter have difficulty perceiving a beat in music-like rhythms, which could account for their halting speech patterns."
I am a bit sceptical, but research by Webster has already shown that they are worse in certain dual tasking. We need more research and also on adults. And I would not be surprised of the stuttering and non-stuttering kids still show overlap in ability.
But I am not convinced zebra finches will help "McAuley also works ... to investigate rhythm perceptions in zebra finches to probe the neurobiological source of stuttering." They are missing the cognitive level.