The saga of cats since we have been here (33 years) is a bit sad. We have have lost a lot to the tarred road and snakes. In the end, to save them from themselves, I put shade cloth around the pergola and meshed in the kids cubby house and made a "tunnel" for them to spend time "outside" in the air and sun, look at the birds and not being able to get them.
At the shed.....there is a resident skink or 2 that give me heart failure when I see just the point of their nose or tail as I am walking around inside the shed. There are a couple of possums that camp in there too. I made a couple of boxes and mounted them above the rolla-doors for them. With the humid weather we have at the moment there is a very "organic" aroma. Boy they crap a lot!!!
There have been numerous Willi Wag Tails that have nested and raised their families as well as a couple of Swallows. And yes, bush block,.....bloody snakes. Thankfully only maybe 5 over more than 30 years. But I am always on "snake alert" albeit subconsciously that's why the Skinks make my heart flutter
One time we had a thunder storm early one morning. In that afternoon the Poodle found something in the shed under a timber rack. I thought bugger a snake. I got down on all fours to see and was stunned to see a dirty big hairy face looking back at me about a metre away. It was a Merema (dog). She had bolted during the thunder storm and took refuge in the shed all day. The Poodle thought she was great. A play mate and a female I eventually got her out and reunited her with her people half a mile up the road.
Rats are also a revolving problem. I get them with Talon. But there ranks are replaced with a new wave of them. I like to get rid of them fairly quickly to not have snakes visit
We also have two Coolys. They are a working dog bred originally in the German parts of SA. They are a little bit bored being working dogs and tend to bark at the neighbours if they are working around their place. I made some gates for the trailer and "store" them, when not on the trailer, as swinging gates in front of the shed and so making an isolation area from the back yard when they are making a nuisance of them selves with the neighbour. They love it!!! Some one to pat them and lots of different smells to poke around and look for what may have made them