I’ve known about the extreme problem that outdoor cats pose to our ecosystem, particularly for bird and rodent populations, for years, and firmly believe that cats should be indoor only. Whenever my belief on this comes up in conversation with cat owners who let their cats outside, though, they indicate no real awareness of the scope of the problem (though there’s probably some willful ignorance mixed in, too), so I’m glad to have an updated reference for them in the form of this Smithsonian Magazine article, “The Moral Cost of Cats.”
killing birds