Re: Love it.
"Be very wary of anyone who can whistle complicated tunes quickly."
I can see it now. Flocks of highly trained, lets say, North Korean Blackbirds being released. They make their way to a minuteman silo : a few specific birdsong tunes later, world war 3 starts. Perhaps penguins could be trained to launch Trident missiles. This is a clear and present danger to world peace. Wake up people!