The yodle (a rolling toowhee toowhee, etc.) is commonest in a flock from birds remaining in one locality, not traveling.
Maybe it's C'nelius's yodle; he's been listening for it for a solid week.
Her lips parted and from her throat came a long, mellow cry not unlike the yodle of the Tyrol.
The yodle probably corresponds in significance with that of the greater yellow-legs—location.
1827, from German jodeln, from dialectal German jo, an exclamation of joy, of imitative origin.