More Than Half of U.S. Birds Are in Decline, Warns New Report

The 2022 U.S. State of the Birds report shows plummeting bird populations across almost all habitats while highlighting the need for further conservation efforts.
Silhouettes of four shorebirds with long legs and beaks foraging in shallow water in dramatic orange light.
Lesser and Greater Yellowlegs. Photo: Shari McCollough/探花精选 Photography Awards

The Rufous Hummingbird, Greater Sage-Grouse, Pinyon Jay, and 67 other birds in the United States are teetering on the edge of disaster, having lost at least half of their populations in the past 50 years. A by North American Bird Conservation Initiative (NABCI) calls these birds 鈥淭ipping Point鈥澨齭pecies, on track to lose another 50 percent of their populations in the same time frame if conservation efforts do not improve.

Since 2009, NABCI has published to track the health of breeding birds in habitats across the nation over the past five decades. The State of the Birds 2022 report for the United States focuses on the wane of bird populations across every habitat except wetlands. Among the groups in the fastest decline are grassland birds, such as Bobolinks and Mountain Plovers, which have shown a total 34 percent loss. Lesser Yellowlegs, Whimbrels, and other shorebirds aren鈥檛 far behind with populations down by 33 percent. Despite the dire situation, the report also emphasizes the success of 40 years of concerted wetland conservation: Waterfowl and waterbirds have surged 34 percent and 18 percent, respectively.

While some duck, goose, and swan populations are exploding, more than half of all U.S. bird species are dwindling. Without further efforts to restore ecosystems under stress, the report paints a grim future for birds in a nation where climate-intensified natural disasters and human-caused habitat loss and degradation continue to worsen. The report鈥檚 authors call on decision-makers to learn from the accomplishments of wetland restoration to save birds and boost climate resilience in other ecosystems.

鈥淧rotecting wildlife and biodiversity is something that everybody should be concerned with,鈥 says Peter Marra, a 2022 State of the Birds science committee member and director of the Earth Commons at Georgetown University Institute for Environment and Sustainability. 鈥淥nce we save birds, we鈥檙e going to save a lot of other species that we share the earth with.鈥

This year, 33 organizations and agencies, including the 探花精选, contributed to the report using听data from five sources: the North American Breeding Bird Survey, the Christmas Bird Count, the Waterfowl Breeding Population and Habitat Survey, International Shorebird Surveys, and the American Woodcock Singing-ground Survey.

Compiling data from these reports, the authors illustrate听how听birds act as indicators of the overall health of the environment,听informing policymakers and the public of听vital conservation needs. 鈥淲e really can't respond or meet the challenges we鈥檙e facing to protect a healthy environment for us and for other species unless we really know the state that it鈥檚 in,鈥 says co-chair of the report鈥檚 science committee, Amanda Rodewald, also the听director of the Center for Avian Population Studies at the Cornell Lab of Ornithology.

The 2022 State of the Birds report is the first overall assessment of the nation鈥檚 birds since a indicating the United States and Canada have lost more than 3 billion birds in the past 50 years. 鈥淲e're basically watching the process of the sixth mass extinction,鈥 says Marra, who is a co-author of the 2019 paper.

Swift conservation action can bring at-risk birds听back from the brink of extinction. The report emphasizes the necessity of these efforts for听90 鈥淥n Alert鈥澨齜ird species, which lack Endangered Species Act听listings听but have lost half or more of their breeding populations in the past 50 years. Within this group,听the 70 Tipping Point species are further identified听as potentially losing half or more of their populations in another five decades. While there鈥檚 a range of urgency within this group, many of these birds are the next likely candidates for listing under the Endangered Species Act, which Rodewald calls听鈥渢he last-ditch effort鈥 to save a species. 鈥淲e don't want to get to the point of having to list species.鈥

Identifying Tipping Point birds allow conservation efforts to begin before a listing is necessary. 鈥淲hy should we wait for them听to get closer to extinction?鈥澨齅arra says. 鈥淲e need to figure out the problem much sooner than that.鈥

Nicole Michel, National 探花精选鈥檚 director of quantitative science, points to the report's emphasis on the success of waterfowl and waterbirds in recent decades as proof that conservation听efforts work.听It 鈥済ives us hope that we can similarly take action to reverse declines of other species, including these Tipping Point species,鈥 she says.听

Underscoring such achievements can create听tangible motivators but should not drive complacency, says Mike Brasher, co-chair of the report鈥檚 science committee and senior waterfowl scientist for Ducks Unlimited Inc. The American Black Duck, for example, is rebounding after a long decline, but not all waterbirds and ducks have healthy populations鈥擬ottled Duck, Black Scoter, and King Eider are listed as Tipping Point species.

鈥淎lthough waterfowl populations have fared better than other birds or other bird groups, they鈥檙e not out of the woods by any stretch of the imagination,鈥 Brasher says. 鈥淭he threats, and potential threats, facing them are intensifying.鈥

In habitats across the world, birds face challenges caused by climate change and human actions, such as expanding agriculture, unsustainable forest management, and introduced species. 鈥淐limate change is already impacting birds, and especially moving forward, it鈥檚 going to increasingly be a major, major threat to bird populations,鈥 Michel says.

NABCI鈥檚 U.S. report听comes on the heels of the equally distressing 听published separately by Birdlife on September 29. This year鈥檚 report shows how听close to听half of the world鈥檚听bird species are decreasing and 鈥渢he risk of species going extinct is escalating,鈥 says Lucy Haskell, science officer for the world report. The United States is eighth globally for the greatest number of threatened species.

Despite the alarming findings of both reports, the authors听remain hopeful. Advances in research and engagement of community scientists provide researchers with more information than ever before. Estimated at 45 million strong in the United States alone, a global 鈥渁rmy of bird watchers鈥 provides a steady stream of new听data and insights, Haskell says.

Well-studied and found in nearly every habitat, birds are excellent biodiversity indicators鈥攂arometers for the planet鈥檚听well-being.听Responsive to environmental changes and with population trends mirroring other wildlife, 鈥渂irds also tell us about the solutions needed to prevent this biodiversity crisis,鈥 Haskell says.

Given the widespread declines, both听reports emphasize that proactive conservation across habitats and species will build a healthier environment for animals and people. 鈥淚t's not just about birds, right?鈥 Rodewald says. 鈥淭here are so many reasons to engage in conservation actions because they benefit all people.鈥