v. Chiefly Sc. [Imitative: cf. wheeple.] intr. To whistle shrilly. Also reduplicated.
1825. Jamieson, Wheetle, sharp peeping sound made by young birds.
1849. Cupples, Green Hand, xvi. A loud clear wheetle-wheetling note from some curious fowl.
1865. H. Kingsley, Hillyars & Burtons, l. [Parrots] who, crowded in long rows, kissed one another, and wheetled idiotically.