<ROTFLMAO>
I'm not sure what part I find funnier.
That you refuse to believe your cute little ball of fur could be totally
ruthless.
Or that you could sooner believe your neighbor can.
It's possible a hawk or owl dropped it, and equally possible the cat did it.
And I'll say it's even possible for the neighbor to have done it
While it's pretty rare that a cat takes down a squirrel, it does happen.
(usually squirrels are fast and agile enough to get away)
And unless the squirrel was small or your cat very large, a head is probably
enough of a feed at one sitting.
Ours regularly will drag home rabbits half their size, and (if undisturbed
for hours) eat them completely, starting at the tip of the ears, and only
leaving a puffball tail.
Sometime I have to go out and shovel the headless corpses into the trash
Nothing shocking, unless you let kitty watch "night of the living dead."
In that case those meows could be kitty talk for "BRAINS, I WANT BRAINS" and
you better sleep with one eye open. ;)