Elephant bird process of continental drift. Claims of findings of "aepyornithid" egg remains on the eastern Canary Islands, if valid, would represent a major biogeographical enigma. These islands are not thought to have been connected to mainland Africa when elephant birds were alive. There is no indication that elephant birds evolved outside Madagascar, and today, the Canary Island eggshells are considered to belong to extinct North African birds that may not have been ratites (possibly "Eremopezus"/"Psammornis", or even Pelagornithidae, prehistoric seabirds of immense size). Various "aepyornithid-like" eggs and bones occur in Paleogene and Miocene deposits in Africa and Europe. Two whole eggs
Nizki Island and kelp-marked shoals. Foxes were introduced to Nizki Island by Russian fur traders in the 19th century. This decimated the population of many bird species on the island. The last fox was removed from Nizki Island in 1976, and now Aleutian Canada Geese (once believed to be extinct), Puffins, and Aleutian Terns are common on the island. Nizki Island Nizki Island (Avayax̂ in Aleut) is an uninhabited island in the Aleutian Islands in the U.S. state of Alaska. Located at , it is the middle island of the Semichi Islands group of the Near Islands. Flanked by Shemya to the