What Animals Form a Herd?
The single most common animal-group word in English — and it applies to far more than hoofed mammals.
Which Animals Form a Herd?
“Herd” is, without much competition, the single most widely used animal collective noun in English. On this site alone it covers seventeen animals: mostly hoofed, grazing mammals — antelope, bison, boars, caribou, donkeys, eland, elephants, gnus, ibex, moose, wildebeest, and yak — but also two marine mammals (dolphins and manatees, both surprisingly common uses), and two birds (cranes and wrens) that break the pattern entirely.
Where Does “Herd” Come From?
“Herd” comes from Old English heord, a very old Germanic word with close cousins in German (Herde) and Old Norse (hjörð). It’s one of the oldest surviving English collective nouns still in everyday use, essentially unchanged in meaning for well over a thousand years: a group of animals, typically grazing or moving together, especially larger hoofed mammals kept or observed as a unit.
Herd vs. Flock vs. Pod
English divides its default group words roughly by animal type: “herd” for land mammals, especially hoofed ones; “flock” for birds and some smaller mammals like sheep; “pod” for smaller marine mammals like dolphins and whales. Dolphins and manatees are genuinely a bit of a crossover case — you’ll see them called both “herd” and “pod” depending on the source, since they’re mammals (herd-eligible) that live in the sea (pod-eligible). Cranes and wrens using “herd” is rarer and more surprising, since almost every other bird on this site defaults to “flock” or a bird-specific term.
Animal-by-Animal Breakdown
For most of the animals on this list, “herd” is the genuine, standard, most commonly used term — that’s true for antelope, bison, caribou, donkeys, eland, elephants, gnus, ibex, moose, wildebeest, and yak. A few carry it as a well-used but secondary alternate: boars are more often a “sounder,” dolphins and manatees are just as often a “pod,” and cranes are more commonly a “sedge” or “siege.” Wrens are the biggest outlier on the list — despite being tiny songbirds, “herd” (alongside “chime”) is a genuinely attested, if unusual, traditional term for a group of wrens.
🧠 Test Your Knowledge
Three quick questions. See what stuck.1. Which bird is unusually described as a “herd”?
2. What is the marine-mammal alternative to “herd” for dolphins?
3. Where does “herd” come from?
Frequently Asked Questions
What animals form a herd?
Herd applies to antelope, bison, boars, caribou, cranes, dolphins, donkeys, eland, elephants, gnus, ibex, manatees, moose, walruses, wildebeest, wrens, and yak, though it’s the true standard term for most of the hoofed mammals on this list.
Why is herd used for wrens, a small bird?
It’s a genuine, if unusual, traditional collective noun for wrens, alongside “chime,” that predates the more common “flock” convention used for most other birds.
Is herd or pod correct for dolphins?
Both are used and both are correct. Dolphins are mammals, which makes “herd” applicable, but they’re also marine animals, which makes “pod” equally common.
What is the most common collective noun for boars?
“Sounder” is more common than “herd” for boars, though herd is also used.
Where does the word herd come from?
From Old English heord, an ancient Germanic word for a group of grazing animals, with close relatives in German and Old Norse.