Herd is definitely right
and I will now remember it forever since it's the first time ask jeeves has answered my question for me.
( izb posting occasional messages since 2001, Thu 6 Feb 2003, 13:27, archived)

hmmm
I think Pod is specifically for killer whales.

Whoop of gorillas
Flange of baboons
/Not The Nine O'Clock News
( Dr Drink, Thu 6 Feb 2003, 13:31, archived)