Looking at the sky in Sydney on a summer night during sunset, dusk and into twilight you will see something in the sky and think, is that a bird? No it a .....?
They come out in search of food and water on dusk to feed on nectar, blossom and fruit (e.g. paperbark or gum tree flowers). Take a look up next time you are out close to the city, and you will probably spot one!
Happy finding!
Do note there is another cache right near here from Geocaching Australia which is just a normal plastic container. That is NOT the cache! https://geocaching.com.au/cache/ga9459