I’ve been a rabid proponent of keeping cats indoors for a long time –it’s better for the cats, better for songbirds, better in a lot of ways. The concept of a “catio” has caught my eye recently, and I look forward to building one in the house I’m trying to buy. If the closing process ever manages to get finished, & if I get through it with my sanity intact (doubtful). But here’s a neat article about catios, with some ideas (click on the title above).
I absolutely love the ‘celestial viewing platform. Those are some seriously lucky cats!