Yackcarn, now, their migration from farther north is more like a month-long stampede. Only the females go. The males stay up above the snow line yearlong. You hear them bellowing in the spring mating session, but I don't think anyone has ever seen one. The Merikit depend on the fall run of their female folk to survive the winter.
– Marc, Bound in Blood, "Chapter VIII: Glass of a Different Color", I
The yackcarn are large bovine wild animals, and a significant prey for the Merikit. They are like "a cross between wooly mammoths and warthogs."
Jame describes their stampede as "four-foot horn spreads, shaggy shoulders twice her height, cloven hooves tearing up the earth with every grunting stride".