I'm down to the 2 brothers of an original 4 kitten litter that showed up in my side yard some 11 years ago.
They live outside....get fed twice a day....and a periodic flea combing - although it's rare that they have any fleas or other parasites.
Lots of habitat for them here including shelter when needed. They've only been to the vet one time.....at 1 year of age to get fixed. Never had anything to do with litter boxes....ugh!
They are my outdoor companions and we enjoy a wonderful dynamic.
Here are the 2 males from 2007...Banjo and Tucker:
They even have their own furniture!
Pic from last year.....I love the fact that the 2 brothers enjoy each other's company.....
I have 2 Blue Heelers as well but they don't stay outside without supervision so we never have conflicts.