The female gray cat who has been hanging around recently was in the yard at the same time as the mother and kittens. Alger's mom didn't run her off, so I'm wondering if the gray kitty is also one of Alger's siblings, but from a different litter. The new kittens are clearly as familiar with her as they are with their mom, and ran to her for protection when the saw me at the window, while their mom remained on the porch and hissed at me.
Anyway, I'm now feeding at least eight feral cats and at least one raccoon, in addition to Portia. Even if I only buy giant, economy-size bags of cheap dry cat food, this could get expensive. Maybe mom cat won't bring the new kittens around very often, though. She's obviously managed to feed them without my help so far, and might have brought them here only because she had a bad day hunting. As cute as the new kittens are I'd rather they didn't become a regular fixture. For one thing, I don't know how Alger will react to them, or how the mom cat would react to Alger if he went after the kittens. It's a situation fraught with potential for feline drama. Do not want!