Critically endangered Christmas Island Frigatebird is endemic to the Christmas Islands in the Indian Ocean.
The most recent estimate was of 1620 pairs (Stokes 1984).
Unfortunately it is estimated that the population of this species will decline by 80 percent in the next 30 years
due to predation of the young by the introduced yellow crazy ant (Anoplolepis gracilipes),
which has devastated the wildlife of the island, and has also killed 10–20 million Christmas Island red crabs.