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In the last 50 years, we have seen the tragic in North America. While some populations of waterbirds and waterfowl have increased due to active conservation of wetlands over the last 40 years, the North American Bird Conservation Initiative reported in 2022 that more than half of bird species in the United States are declining in population. Saline lakes are critically important to migratory shorebird species, whose populations have declined nearly 70 percent since 1973.

Saline Lakes Are at Risk

In the arid West, saline lakes are under threat from loss of water and changing habitats, heightening the need to address the health of these migratory habitats proactively. Saline lakes, sometimes referred to as terminal lakes because they are situated at the bottom of a watershed basin. form an irreplaceable network of habitats that support millions of migrating shorebirds, waterfowl and other waterbirds throughout their annual travels.

The largest saline lake in the American West is Great Salt Lake, with an extensive complex of wetlands providing some of the most important habitat in the world for millions of migratory birds. Great Salt Lake is home to five Global Important Bird Areas (IBAs). These are sites of international significance for birds and biodiversity, and at Great Salt Lake they provide habitat for close to 56 percent of the world population of American Avocets and 40 percent of Wilson’s Phalarope. The lake also is also an important site within the , which stretches from Alaska to Tierra del Fuego in South America.

 The U.S. Fish and Wildlife Service (USFWS) is reviewing the  as a threatened species under the Endangered Species Act (ESA). The USFWS review will first be to determine whether there is “substantial information” indicating that the petitioned action may be warranted. If that answer is yes, the USFWS will initiate a status review of the petition to determine if protection under the ESA is warranted.

How ���Ϲ��� is Driving Attention to the Conservation of Saline Lakes, Answering the Wilson Phalarope’s Call

“We know that many species are in decline across North America and around the world,” said Andrea Jones, ���Ϲ��� California’s Senior Director of Conservation. “We believe that on-the-ground conservation combined with filling critical data gaps to better understand population trends for birds like the Wilson’s Phalarope is key to recovering and maintaining bird populations now and into the future.”

With the decline of saline lake ecosystems in the Western Hemisphere and the deterioration or loss of these irreplaceable habitats, ���Ϲ��� (���Ϲ���) is concerned about the food webs and the vulnerable species that rely on this network. Birds that rely on saline lake systems during migration along the Pacific Flyway include Wilson’s Phalaropes, Western Sandpipers, Long-Billed Curlews, and Eared Grebes. They are also important breeding sites for American Avocets, Black-necked Stilts, Wilson’s Phalaropes, Cinnamon Teal, Gadwall, and many other shorebirds, waterfowl, and other waterbird species. Species such as Ruddy Duck, Northern Pintail, Common Goldeneye, and White-faced Ibis also are dependent on these saline lake ecosystems. These key species face challenges as habitat conditions in saline lake ecosystems and other habitats degrade due to aridification, increasing temperatures from climate change, water declines from drought and human consumption and increased salinity.

���Ϲ��� is working to drive funding and resources toward these needs both at the state and federal levels in the western U.S., focused on Great Salt Lake, Salton Sea, Owens Lake, Mono Lake, Lake Abert and others.

���Ϲ��� and many partners were heavily involved in supporting passage of the “Saline Lake Ecosystems of the Great Basin States Program Act”. This legislation provides funding to the United States Geological Survey (USGS) for implementation of a needed program to bolster understanding of hydrology and bird usage of terminal lake ecosystems across the Intermountain West. USGS recently issued the as an important step in implementing the legislation. The USGS Science Strategy noted that the current state of knowledge and data collection for birds and various habitats at saline lakes and their surrounding wetlands needs to be improved to better understand bird abundance and how the habitats are used as an interconnected system. ���Ϲ��� and its partners continue to advocate for additional federal funding to satisfy this need.

At Great Salt Lake, ���Ϲ���’s Saline Lakes Program is working in collaboration with many others to advance voluntary water transactions to benefit the Lake and its wetlands, while ���Ϲ���’s Gillmor Sanctuary provides more than 3600 acres of habitat for shorebirds and other waterbirds on the Lake’s south shore.

Additionally, with funding from the U.S. Fish and Wildlife Service and state agencies, ���Ϲ���, Point Blue Conservation Science, and a network of more than 70 organizations including state and federal wildlife agency biologists, ���Ϲ��� chapter volunteers and other NGOs have been spearheading the Intermountain West Shorebird Surveys. This coordinated effort between biologists and over 200 volunteers strives to help us understand shorebird populations and their distribution across the Western U.S. for the first time in three decades.

���Ϲ��� California is working at the Salton Sea, California’s largest lake, to develop solutions to stabilize the Sea for the communities and birds in the region, as water inputs to the Sea are reduced.  One of ���Ϲ���’s projects is implementing a demonstration project at Bombay Beach on the Salton Sea to expand, stabilize, and restore 560 acres of wetlands that have emerged along desert washes that no longer reach the Sea itself. The project includes measures to reduce noxious, wind-driven dust that contributes to high rates of respiratory diseases in surrounding communities and will provide habitat for some of the estimated 300 species of birds found at the Salton Sea. In addition, these wetlands will provide recreation opportunities for the local people such as picnicking, bird watching, and hiking.

���Ϲ���’s efforts are focused on driving resources and sound science, including determining the vulnerability of species that rely on specialized habitats such as saline lakes, how they move and use habitats, not just in North America but across the flyway, to help identify specific actions to improve or protect places that birds need. Filling these data gaps will provide essential information to make management decisions and identify durable solutions that ensure the viability of the many species that rely on these habitats.

���Ϲ��� has not taken a formal position on the petition. As the USFWS scientific process moves forward, we encourage federal agencies, states with important breeding and migratory habitat for the Wilson’s Phalarope, and other partners to prioritize attention and dedicate resources to saline lake habitats and the species that rely on them, including accelerating efforts to preserve saline lake habitats, investing in species monitoring, and addressing needed water flows into these lakes. ���Ϲ��� will continue to take action in partnership with our membership and other agencies and organizations to implement solutions that balance the needs of people and birds.