News Animals Grammar’s for the Birds: Human-only language rule? Tell starlings By Susan Milius April 26, 2006 at 12:45 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print At least some birds can learn a pattern once proposed as unique to the grammars of human languages, say researchers. RATTLE, WARBLE, RATTLE. Starlings can make a wide variety of sounds. A test now suggests that they can learn a basic principle of grammar. D.