What do you call a group of koalas?

This must be pretty obscure if there is one, it's not in the Oxford collective listing.

however, try the Australian Macquarie Dictionary. I had a slow connection and kept timing out.

Since koalas are solitary animals maybe there is no group name for them.

Based on those creations by Victorian vicars that all the books quote (like a skulk of foxes or a siege of bitterns) I suppose you could legitimately create one, like a cuddle of koalas. Pity that they're bad-tempered, solitary and extremely picky in their food, as well.

A koalition, perhaps.

Or how about a crate of koalas, or am I thinking about colas? Alternatively it could be a case, a coca, a can or even a bottle!

There is no collective noun for a group of koalas moving around together because koalas don't move around in groups like dolphins or some birds. They are fairly solitary creatures, although they do like to be living in overlapping home ranges in bushland with other koalas. These groups are usually called 'koala populations' or 'koala colonies'.

Sourced from -

https://www.savethekoala.com/about-koalas/frequently-asked-questions