|
Trumpeter Swan
Trumpeter swans are the largest
waterfowl in North America, and easily the biggest flyers in
Yellowstone. The wingspan of males (cobs) can reach seven feet. Cobs
weigh between 25 and 30 pounds, while females (pens) weigh 23 to 27
pounds. The trumpeter is generally bigger and heavier than the eagle.
The trumpeter swan, native only to North America, was once headed toward
extinction south of Canada. By the mid-1800s, market hunters had almost
exterminated the trumpeter. They were slaughtered in great numbers for
their plumage, used to decorate ladies' hats. By the 1830s, fewer than
100 birds remained. Congress set aside a wildlife refuge west of
Yellowstone to facilitate trumpeter recovery. In recent years, the Park
Service has also taken measures to assist the trumpeter, including
nesting islands to protect nests from coyote predation.
 Where
to find them
Look for Swans along the Madison and Firehole Rivers. There is almost
always a nesting pair on the Madison and depending on the time of year
watch for cygnets. The Yellowstone River just south of Canyon is another
good spot to look for Swans.
|
