It suddenly got cold out.

And windy. I'm running the water through the house, and I put out a box for the ferals - Lola, her mother, and a male cat I assume is her mother's littermate. It's not exactly adequate for long-term use, or if the temperatures should drop any lower than we're expecting, but it at least blocks the wind on three sides (the open side is facing a wall) and with three of them crowded in there together they shouldn't be too bad off. If they leave it during the day tomorrow I'll see if I can put a second box in there, provide some very minimal insulation.