Whooper Swans Holiday Cards
Inside message: Season’s Greetings
One dozen 5 x 7 in. holiday cards with envelopes
Printed on recycled paper with soy-based inks
Published with the Sierra Club
Whooper swans by Jan Smit
In flight, some swans make a thrumming sound with their wings; the wingbeats of the whooper swan (Cygnus cygnus) are silent—despite its nearly eight-foot wingspan—but it is known as one of the most musical swan species. A special tracheal formation makes whoopers’ varied vocalizations possible, including its namesake whoop-whoop while aloft. Its melodious calls often sound mournful to human ears, calling to mind somber notes of farewell.
A portion of the proceeds from the sale of this product supports the Sierra Club’s efforts to preserve and protect the planet.