Here's why:
* Nomadic means that they didn't have a permanent home and traveled with the buffalo herds to find food and resources.
* Plains Indians refers to the Native American tribes who lived on the Great Plains of North America, where the buffalo herds were most plentiful.
Some specific tribes who were known for following the buffalo include:
* Lakota
* Cheyenne
* Comanche
* Blackfoot
* Sioux
It's important to remember that these tribes had complex cultures and ways of life, and simply calling them "buffalo hunters" doesn't do justice to their rich history.