Uhm, songbirds? You know what birds used to be? Dinosaurs. Friggin dinosaurs.

If you ask me, they could use some more predators. Anything that puts them back on an evolutionary track befitting what used to be nature's most badass creation is a good thing.

A Paper Moon fan, I see.

Seriously, though, why not just add mens' livers to the pyramid? You get all the benefits of having a liver pyramid without the crushing guilt.