The thus far non-talking little guy spoke!
This morning as I wrote at my computer, I heard several little peeps like the smoke alarm in preliminary caution mode but deeper and not so monotonic.
I thought it was something electronic from the other end of the house, or maybe outside.
I finally realized the little guy was next to my leg, wanting up into my lap.
This afternoon, there it was again, and there he was again.
A very quiet little rusty squeak/peep.