• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Birds - Pine Siskin

Pine Siskin - Carduelis pinus
Pine Siskin - Carduelis pinus
NPS Photo by John Shaw

Did You Know?

A picture of Alvin McDonald in his caving hat.

Alvin McDonald was the first systematic explorer of Wind Cave. He explored the cave from 1890 until his death in 1893. More...