Give two reasons why the nene goose have become endangered?

The Canada Goose is not currently listed as an "endangered" species. They are listed as "least concern" by the International Union of Conservation for Nature, or the IUCN Red List. This is said to be in large part due to society recognizing the drastic decline in the populations of the Canada Geese and taking actions to protect them, their nesting grounds, and migrations routes. The Canada Geese were seriously over hunted without any real regard for their numbers through out the 1800s and early 1900s causing major declines in the overall populations. Also, habitat loss in their nesting grounds, breeding areas, and along migration routes was a major factor in the decline of the populations. At one time, the Giant Canada Goose subspecies was thought to be extinct. But in 1962 a small flock was found wintering in Minnesota. Some of the subspecies, and local populations have not recovered as well as others, but many are increasing their population numbers, and others no longer migrate, but have become resident flocks. For more details, please see the sites listed below.

Many location snow have such large numbers of Canadian Geese that there are serious plans for culls which would eliminate many of the geese by hunting, trapping or poisoning. many airports regard the species as a pest and a danger as they can damage or destroy jut aircraft.