10,000 Birds

MARCH 5, 2024

These lands support countless birds, either year-round, as migratory stopovers, or as breeding grounds. The federal government owns about 46% of the land in these states but only about 4% of the other states (excluding Alaska). There is one gigantic outlier: Alaska. In terms of federal land, Alaska truly stands apart.

Virgin Islands 208

Virgin Islands Alaska United States Endangered Species 208

10,000 Birds

MARCH 15, 2016

The vast majority of this area (about 85%) is in Alaska. For example, essentially the entire population of the endangered Whooping Crane winters at Aransas NWR in Texas. Farallon NWR , a group of islands near San Francisco, hosts the largest colonies of breeding seabirds south of Alaska.

Wildlife 189

Wildlife Grizzly Bear Puerto Rico United States 189

10,000 Birds

NOVEMBER 14, 2017

For example, the Endangered Species Act and Migratory Bird Treaty Act—America’s most important avian conservation laws—apply in both territories. Although most conservation research focuses on northern breeding grounds, many ABA Area birds spend most of the year elsewhere. Both territories are also part of the U.S.

Puerto Rico 152

Puerto Rico Virgin Islands Hawaii United States 152