What Does “A Herd of Caribou” Mean?
“Herd” is the standard, straightforward collective noun for caribou (the North American name for reindeer), and it fits an animal famous for forming some of the largest land-mammal gatherings on Earth. Certain caribou herds, like the Western Arctic or Porcupine herds in Alaska and Canada, have historically numbered in the hundreds of thousands of animals, moving together across vast stretches of tundra.
Caribou herds undertake some of the longest land migrations of any mammal, traveling well over a thousand miles annually between calving grounds and wintering areas, a journey driven by the search for food and safer conditions to raise young. That scale and coordination make “herd” feel almost too modest a word for what’s actually one of the more spectacular mass movements in the animal kingdom.
Example: “A herd of caribou stretched to the horizon as they crossed the frozen river on their spring migration.”
Related: Collective Nouns for Mammals