Continuity mistake: On page 85, the first two lines. It's about the otter skin medicine bag. The book says, "the one she had brought with her from the Clan, the one Iza had given her." But when Ayla was pronounced dead by Broud, the new leader, her medicine bag was destroyed.
Continuity mistake: On p. 86 (hardcover) it says Ayla has never seen onagers before. But she hunted them in The Valley of Horses with Whinney and Baby (Chapter 13, p. 264 in the paperback).