Hello, Elle!
I am perfectly happy with 8.
A meaning of "sensible" is "having the power of sensation".
Which, to me, can mean feeling/sensing the signals/message travelling along the nerves.
The "mimicking bird" baffles me.
Parrots mimic, but I can't see a link to peeping.
I have had a look in Bradford's, but found nothing to help.
There was a bird called a "pea", now a "peafowl", but that is no help.
Last I heard of my friends they were at Dublin International.
I do not know if they have left Dublin or not yet.