Crab Claw Island is a remote island in the south pacific, untouched and unknown to humans. It is home to various species of flightless birds, much like the ones found in Australia and New Zealand. However, one species has evolved to become very intelligent (probably evolved in a similar vein of intelligence as the "Kea" of New Zealand.) Their intelligence is unlike any other bird in the world, so great that they have even begun to make a sort of primitive tribal society, unique to their environment.
They share the island with other inhabitants as well. Their main foe is a predatory creature, akin to the prehistoric "terror-bird," only smaller, and also unique to the island. These two species are in constant conflict with one another.