It's the antenna, for the tracker, the Government installed. So they can track your every move. If you live in Kalifornia, they will use it to track your milage, and tax you for every mile driven, when they can sneak that tax past the stoned Kalifornians.
It might be a funnel web spider web. Trap door spiders are bigger than usual this year due to the drought. Red back spiders are the same size as usual and equally as deadly.
Bindis are of course the same size as they have been for the last 10,000 years.
As for snakes, brown snakes famously run in pairs and should be avoided. All snakes should be avoided as should be sharks.
I look forward to the JL arriving in Sydney. Happy New Yerl