作为水鸟如鹳或鹈鹕的祖先，身材更大的伪齿鸟与现代的近亲有很多相似的特征。然而，伪齿鸟似乎要花更多的时间在深海中捕鱼。 事实上，我很少在主岛的海岸附近发现野生伪齿鸟，因为它更喜欢在海面上飞翔而不是沿着岛上的海滩漫步。 也许这种行为是其生存本能的结果。中新世早期是一个恐龙后时代，毕竟，伪齿鸟不会习惯恐龙这样的掠食者。考虑到它逃离人类的速度有多快，人们几乎不能责怪它的谨慎。
Common name: Pelagornis
Species: Pelagornis miocaenus
Time: Early Miocene
The much-larger ancestor of water birds like the stork or pelican, Pelagornis miocaenus shares many traits with its modern-day brethren. However, it seems to spend far more time hunting for fish over the open deep-sea. In fact, I have rarely spotted a wild Pelagornis anywhere near the coasts of the main Island, as it prefers to rest its wings by paddling on the ocean's surface rather than waddling along the Island's beaches. Perhaps this behavior is a result of its survival instincts. The Early Miocene was a post-dinosaur epoch, after all, and Pelagornis would not be accustomed to such predators. Considering how quickly it flees from humans, one can hardly blame its caution.
Because of its ability to fly, walk and surface-swim, a tamed Pelagornis is one of the Island's most versatile mounts, but this comes at a cost. The same webbed feet that allow Pelagornis to serenely maneuver along the ocean's surface prevent it from carrying prey off the ground, which may limit its appeal to some survivors.