A visitor

 About 2130 hrs last evening there was a loud bang outside.   This was followed by Frances telling me to bring my headlight.  We had a visitor who had climbed up a metal pole on to our railing.

We love koalas, but didn't want one climbing around the deck all evening so I shooed him off his perch and he disappeared down the garden.  10 minutes later he was back stomping up and down the deck and refusing to be further shooed.  He also seem determined to debunk the myth that they only eat a few species of eucalypt leaves, by adding my new Blundstones to his diet.  The boots were taken indoors.

I consulted our wildlife carer, who advised he was probably looking for love (or at least the physical manifestation thereof) and would probably go away eventually.

After about 30 minutes checking out the pot plants and peering through the glass door, ...

... he did wander off.  As there was no noise - in our hearing - we assume his search was unsuccessful.