Indoors indoors indoors.
I will never have another cat be a indoor/outdoor cat ever again.
When I used to live with fiance and his family, they had outdoor cats.
One went missing... they never found it.
The other was ALWAYS sick b/c it would get into fights with various animals outside.
They would take her to the vet, get her medicine, get her better, and she'd be sick once again.
And when I was little, we used to have 2 strictly indoor cats, but my dad gave them to my uncle when we moved. My uncle let these cats go outside. One ended up getting hit by a car, the other was declawed (we didn't know any better at the time), so couldn't defend itself and got killed from fighting.
Then, for the short time I lived in Illinois... the condo complex we lived in had alot of wildlife. Chipmunks, ducks.. etc.. the ducks would walk down the street and people would throw bread out to them. Well my dad's new wife brought over her stank cat that she let out and all of the animals went away. I never saw another duck again b/c her cat chased them away.
Our 2 cats will never be allowed to wander around outside on their own. I'll sometimes let them out slightly to chomp on some grass while I'm taking the dogs out, but they know not to go far and as soon as I say go in, they're inside.
The street we live on is far too busy to let any animal run wild.
Plus I know there are sick people out there that would/could possibly harm them.