i didn't hear it yesterday morning, either. instead, i heard it squeaking as it was trying to get back in from behind the steps, after i turned the music on, like a meowing cat maneuvering it's way towards you after you've been gone a day or two.
it stopped under the landing (in the wall) to squeak hello at me before it went back up into the vents to sing.
you know what i say about cats, right?
they've been miscategorized. their true phylogenetic, cladistic category is RODENTIA.
but tonight it's the mouse that sounds like the cat.
i don't want a pet. i want it to run free. go outside and get some acorns in ya before it's too late.