That's what this little white-throated sparrow sings so enthusiastically. The song sounds like, "Oh, sweet Canada, Canada, Canada".
I think he's a terribly handsome fellow, with the yellow patches in front of his eyes and the bold white stripes, not to mention the bright white throat patch.
These birds pass through in the spring and fall, and if I'm lucky, a few of them will decide to stick around and build a nest in the summer or spend the winter enjoying the chicken scratch I throw under the feeders.
They're welcome whenever they decide to stop by, though.