Elephant bird bird" egg after it was radiographed. It is widely believed that the extinction of "Aepyornis" was a result of human activity. The birds were initially widespread, occurring from the northern to the southern tip of Madagascar. One theory states that humans hunted the elephant birds to extinction in a very short time for such a large landmass (the Blitzkrieg hypothesis). There is indeed evidence that they were hunted and their preferred habitats destroyed. Eggs may have been particularly vulnerable. 19th-century travelers saw eggshells used as bowls, and a recent archaeological study found remains of eggshells among the remains of human
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