I tried a CD of birdcalls on my lot once. A British newspaper had a freebie 4-CD set of the calls of the birds of Britain, in alphabetical order. So I started with A.
We have six cats - they all went berserk running backwards and forwards around the house and searching under the furniture trying to find where lunch was hiding, except for one who stood on her hind legs on the back of an armchair like a meerkat with her head swivelling from side to side, wondering why she couldn't see anything.
I took the CD off pronto, so I didn't get to find out whether birds beginning with B were less tasty.