And that would be it. After 110 kills, two green drops, and one blue. The white serpent is my new pet. He's a rare spawn in Feralis. I've figured out why I feel this need to have rare pets.
Night Elf hunters are a dime a dozen, and having an unusual pet, whether it's Siberius above or Eriador below differentiates me a bit. (I threw in a screenshot of my much-neglected kitty, Llofios, so you could see all my pets). And the screenshot is from just after I got him, before I named him, apparently.