That’s how the song of the Rose-breasted Grosbeak is described.
With his striking black and white plumage and rosy feather boa around his chest (which continues under his wing), this guy is a backyard favorite. A bill this big and sturdy should be used to crunch big seeds, but for the past two days, he has been ignoring the sunflower seeds and pigging out on suet instead.
This is an interesting bird. It’s more closely related to cardinals (same family) than finches, even though it looks like a big finch. The female is streaked with finchy brown and white color and looks like a big sparrow. It hybridizes with the Black-headed Grosbeak where their ranges overlap in the Great Plains, so these two are apparently not separate species, despite their gaudy color differences. And to emphasize the latter point, the rose-colored breast is not the definitive signal of male-ness, the white patches on rump and wing are!
But the song is sweet and plaintive, and one of the prettier sounds of spring, as this YouTube video shows. (Lang Elliott, musicofnature.org)