Crabs
The red crap population on Christmas Island is estimated to be above 100 million. They migrate - all at once between November and December. When they are 'on the move' they walk on or over everything in their path - roads, park benches, houses, the hotel, cars. They are harmless though and only intent upon mating to create even more red crabs!

Other crabs include the Coconut or Robber crab - the largest terrestrial crab in the world. CI is home to the largest population of this endangered species on earth. You can see large numbers of these in the forest especially there one of the endemic Palms is fruiting.

Birds
Eight seabird species breed on Christmas Island but three are unique to the island: The Golden Bosun bird a subspecies of the Red-tailed Tropicbird, the Christmas Island Frigatebird with its huge, red, Pelican-like throat sac and the Abott's Booby.
Amongst the landbirds there are six species unique to Christmas Island - the ubiquitous Imperial Pigeon, the night-active Hawk-owl, the CI White-eye, the CI Emerald Dove, The CI Goshawk, the CI Glossy Swiftlet
Worth seeing is the endemic Christmas Island fruit bat soaring in the currents like a bird at Margaret Knoll.