Each winter, hundreds of trumpeter swans migrate from breeding grounds in Wisconsin to the Riverlands Migratory Bird Sanctuary, just across the Mississippi River from Alton, Illinois. This year there are about 900 of them, a record for the area. On a recent cold blustery morning, IPR's Veronique LaCapra went to see and hear the swans. She produced this audio postcard.
See photos of the Trumpeter Swans
(photo credit: Danny Brown)
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