Factual error: There is no way a 2001 phone's tiny speaker could be heard a hundred meters away in the belly of a dinosaur or later buried in a mound of dino dung.
Factual error: When they find the camcorder and discover the battery is dead, Udesky takes the batteries from his Maglite, and they magically work in the camcorder.
Answer: The island was located west of Costa Rica in the pacific so its likely they are headed for the Americas or Galapagos islands. They won't likely start hunting on animals and humans as they are thought to be fish eaters and thus would stay near the coast and avoid contact with land animals, especially predators. The reason they attack the humans in the bird cage is because of malnutrition and captivity related stress.
lionhead