The eponymous call of the Northern Bobwhite (Colinus virginianus). Our Southern Birds relates:

Not much of a song it seems, but we may all be glad that Bob White is now classed as a songbird and placed under government protection. He is more to be valued as an ally of the farmer than as a game bird, although, like chickens, he eats pretty much everything edible. He likes to run through wheat or cowpeas, gleaning; but his services in making away with the pestiferous cotton boll weevil and other harmful insects more than pay his keep. (52-3)

For more on the state of Tennessee's act to protect non-game birds, cf. the note to the FSC of May 2, 1914.