I hear it was a clowder of cats?
That is a collective term for three or more cats in general, while kindle is kitten-specific. For a behavior-based collective, a glaring is a clowder uneasy with each other. Sadly, I could not find the origin for a pounce of cats, but it seems to be a good description for a group of playful felines.
If any of the previous groups are feral, they qualify as a destruction, but would that not be a great term for the current majority in Congress?