Yes, they usually do. But will hunt as a pack too. It's not common, but if larger prey is all that is available they will pack hunt. Friends of ours lost a calf to a pack. Caught em at it, managed to take down 2 but the others got away.From Ask a naturalist site:
http://askanaturalist.com/are-coyotes-always-in-packs/
""As I approached the large coyote enclosure, the zoo’s pair began howling. I had never been that close to howling coyotes before and what surprised me was that it sounded just like what I had always interpreted as “a large pack of coyotes killing something.” But it was only two animals, sitting on opposite ends of their enclosure, singing to the morning.
So their howling song can be misleading. You might think you have a large pack living near you, when it’s just a pair.""
They hunt singly... or in pairs.
from:
https://urbancoyoteresearch.com/coyote-info/general-information-about-coyotes
""Although coyotes live in family groups, they usually travel and hunt alone or in loose pairs. In this way they are different from wolves, which sometimes leads to the impression that coyotes do not form packs since they are usually seen alone.""
So Coyotes to form packs... but they dont hunt in packs... Generally. But coyotes are very adaptable. And opportunistic... They mostly eat rodents and fruit when they get it.
Speaking as one who has lost three flocks to coyotes.... They usually take one or two chickens at a time... Most I have lost at once was four. Probably feeding pups.
deb
And yeah, it's amazing how they sound like more than one or two. But when there's 5 or 6 it's very unnerving...