Plumed whistling duck
Chapter 10: More birds! More Sounds!
Subchapter: More birds! More Sounds!—Australia
From page 170 in the book.
An elegant duck, standing tall like a goose, with buffy plumes extending beyond the flanks. Just listen to this flock of dozens "whistle," though somewhat shrilly.
♫713. October 19, 2007. Hastie Swamp, Atherton, Queensland. (0:38)