Yellowstone is home to a small cougar population, but theyare rare and seldom seen. The noisy ruffed grouse or “thunder chicken” is far less elusive, as the males “drum” their wings loudly in the breeding season, advertising their presence to any nearby female birds.
If you’d like to watch this and more videos, join our free trial.
Spanish
French
German
Italian
Chinese
English 
Español
Français
Italiano
Deutsch
Português
