I have a theory about the Tiny Colibri.
You know that chest off to the side right before the first boss in Brayflox Hard? It's guarded by 3 Colibri.
No one ever seems to grab that chest because it means fighting more mobs, and it usually has potions.
But I wonder if it's like the Fine Wax in Haukke Manor, which drops only like 10% of the time, and other times is potions.
Maybe the Colibri pet comes from there, since the Opo Opo pet comes from the final boss?
No groups ever want to grab that chest though
