Hunted by mongooses, cats, and people...
The Hawaiian Goose is a waterfowl that only lives on the Hawaiian Islands. They were once a common sight throughout the Hawaiian Islands, with a population reaching 25,000 geese in the 18th century. However, once immigrants from Europe started arriving on the islands, their number dropped as they came under the attack of the mongooses and cats brought by the immigrants. As if that were not bad enough, people hunted them to the point that in 1949, there were only 30 geese left.

Conservation efforts help increase population!
Fortunately, for the Hawaiian Goose, many people and organizations are conducting conservation efforts aggressively. An ongoing effort in place since the 1950's has helped to breed the geese artificially and return them to the wild. Due these efforts, authorities were able to confirm at least 2000 geese in existence in the 2010s, and that number continues to increase today. Unfortunately, it is extremely rare for a population of endangered species to rise again. If the Hawaiian Goose can continue to increase and regain their original lifestyle, it would set a remarkable precedent for efforts to protect various other animals.