Though many have become obsolete

Though many have become obsolete

I find in Strutt's "Sports and Pastimes" that of the names applied to companies of animals in the Middle Ages, several are still in use, though many have become obsolete; and also a few of the beasts have ceased to exist in a wild state. Some were very curious, such as a skulk of foxes, a cete of badgers, a huske or down of hares, a nest of rabbits, and a clowder of cats, and a kindle of young cats. Now cats are said to kitten, and rabbits kindle.

Fonte: Cats