Molly Moo-Cow and the Indians (1935)

A Conestoga Wagon leads Molly Moo-Cow and some ducks through the hills. The ducks stop for a swim by a tepee and go to explore the settlement. Molly misses her friends and goes to look for them; when she finds them she discovers they're behaving like Native Americans, and she joins in. Meanwhile, a Native woman downstream loses her baby in the stream and chases after her. Seeing the baby's in trouble, Molly pursues it as well, and eventually retrieves it.