What is the collective noun for swam?

There isn't a widely recognized collective noun for a group of swans.

While "flock" is sometimes used for swans, it's more commonly associated with birds like geese and ducks.

Instead, you could use more general terms like:

* Group

* Gathering

* Bevy (though this is more often used for quail)

* Flight (when they are flying)

Ultimately, the best term depends on the context and the specific behavior of the swans in question.