Feral Ol' Mom has been hanging around, yowling, practically nonstop since yesterday evening.
It's a very distinctive yowl.
It probably means: "My children! The time is come! Rise up and overthrow the two-leggèd oppressors!"
Fortunately, I'm very good at this cult-indoctrination thing, and the poor deluded kittens actually think they're happy where they are. What with being warm and safe and well fed, and all that materialist stuff.
(Oh, and I tried to get a photo of Feral Ol' Mom while she was lying atop the side fence this morning, but she ran off the moment she saw the camera.)