Pat H, the calmness with which you added mountain lion...
I don't have a yard, but help a lot in the gardens at my parents'. They have all sorts of insects, amphibians & mammals, because it's been pesticide free since they bought it, 30+ years ago. This is also why it's so high maintenance. If you want to 'be green', you've got to roll up your sleeves - or you could do as many do & simply point out ways for others to do so.
I would say notable daytime visitors include squirrels, chipmunks, blue jays, cardinals, robins, crows, sparrows, chickadees, ants, spiders, worms & other 'bugs' of all kinds, toads, eastern cottontails & some other birds I don't know the name of or only hear (like the woodpeckers).
Notable nighttime visitors include raccons, skunks, foxes & we once rescued a stranded star nosed mole. It's like it's a different world at night, but I'm sure I'm missing a lot of them!
Most recently, I helped a baby toad who'd gotten stranded on the wrong side of a rock garden wall. I helped him over it. So adorable! Toads are among my favourites. Sorry, no pics. It was more important that he reintegrate the garden.