I call it croaking. The more sophisticated folks at Cornell Lab of Ornithology in ``All About Birds'' describe the sound of sandhill cranes as ``a deep, rolling trumpet and rattling.'' Decide for yourself.
Either way, the distinctive sound of sandhills are all over the Chicago area today as a massive migration is underway.
I made my kids identify the sound after school, then showed them a couple dozen riding thermals.
Long-time reader Joe was the first to e-mail: ``The Sand Hills are flying over Wheaton . . . and it is a lovely sound!''
Bob Mikol followed shortly with this note: ``Massive migration passing over Darien, IL. Est. near 3,000+ birds. Awesome to watch them catch the thermals and move on.''
Watch the sky and enjoy.
Changes are coming, as Joe sent in a follow-up note: ``Almost as good as the Peepers, which soon will be heard at the Arboretum.''
Soon enough, soon enough, all kinds of sights and sounds are coming. Long overdue this year.