trumpeter swans

Historically, Trumpeter Swans covered much of North America, but by 1932, a National Park Service survey found only 69 trumpeters in the entire contiguous United States. This spurred a conservation effort that included a feeding program in the Red Rocks National Wildlife Refuge near Dillon, Montana.

What native Montana bird can weigh up to 30 pounds and have a wingspan of eight feet? Here's a hint: it's not the bald eagle. These characteristics, in…