NPS / Neal Herbert
The harsh cries of red-winged blackbirds reverberate across Swan Lake lake amidst the sounds of boreal chorus frogs and sandhill cranes.
[Boreal chorus frogs singing]
[Red-winged blackbirds singing]
Last updated: May 22, 2017
PO Box 168 Yellowstone National Park, WY 82190-0168
307-344-7381