Ridgway's Rail
Latin: Rallus obsoletus
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How an emerging wetland at the Salton Sea offers new hope for migratory birds and local communities.
Bombay Beach Wetland Project | Proyecto de humedales de Bombay Beach Photo: Emily Tozzi/Formation Environmental
The Salton Sea’s waterline continues to rapidly recede, leaving behind exposed playa that exacerbates respiratory diseases and other issues for nearby communities.
Unexpectedly, however, the shoreline’s recession has created an opportunity for nature to take its course, evident by the presence of newly emerging wetlands around the Salton Sea. There are roughly 6,000 acres of newly formed wetlands that have emerged around the Salton Sea. They are a product of agricultural outflows or from natural seeps from springs. In June of 2020, Audubon California released a report titled "Identifying Existing Areas for Habitat Protection/Enhancement and Dust Suppression Projects on the Salton Sea Exposed Playa" that assesses the amount and distribution of these wetlands.
Audubon California has received a grant from the United States Bureau of Reclamation that will fund project design, biological surveys, and community engagement for both dust suppression and the expansion, stabilization, restoration, and enhancement of 250 acres of these emerging wetlands near the town of Bombay Beach on the Salton Sea. These incidental wetlands can serve a dual purpose in creating vital habitat for migrating birds and mitigating the dust that endangers the respiratory health of the 650,000 people who live near the Salton Sea.
The existing Bombay Beach Wetland is located on the southeastern shore of the Salton Sea, about 3 miles east of the Bombay Beach community. It consists of a wetland and surrounding vegetation that has developed where several prominent washes converge and groundwater discharges. There are existing saline wetlands and brackish pond habitats for species including the Yuma Ridgway’s Rail, American Avocet, Northern Pintail, and possibly the Desert Pupfish.
The existing wetland will remain small, however, without restoration and stabilization. This is because the higher quality habitat area upslope is being increasingly dominated by a monoculture of the invasive Tamarisk plant. The wildlife species, however, are already using the area, despite the lack of formal restoration or management, indicating that there is an opportunity to enhance the area.
The Salton Sea as a whole is important for more than 300 species of resident and migratory birds. Additionally, where there is not wetland or vegetated habitats, there is bare playa that is responsible for dust pollution to the surrounding communities. It is imperative that these emerging wetlands at the Salton Sea be stabilized to ensure sufficient habitat along the Pacific Flyway and to mitigate dust pollution.
The Bombay Beach Wetlands project aims to stabilize and enhance various emergent and saline wetlands and playa habitats, protect human health by optimizing water use to promote dust suppression in nearby playas, and provide opportunities for recreational public access.
Wetland preservation and enhancement will be done by protecting existing vegetation, wetland, and aquatic habitat areas from damaging stormwater inflows with the reinforcement of shoreline berms that protect the area.
The reinforcement of berms, complemented by water-use optimization infrastructure, will allow for water to have a maximum environmental beneficial use. This project aims to optimize water use to irrigate vegetation around the adjacent playa for dust control, to maintain the salinity in wetland areas for optimal species productivity, and to enhance and promote new habitat in the wetland.
This project also aims to include outdoor recreation opportunities for the community and is receptive to public feedback on potential project design alternatives and public access ideas. We hope to make this emergent wetland an area that the public can experience, the birds can live in, and an area that can help mitigate public health issues.
The Bombay Beach Wetland Project is in the first phase, which is expected to take two years, which includes habitat and dust control project design, scientific monitoring and data collection, and community engagement in planning design. Following successful completion of this planning phase, groundbreaking on construction would start in 2023.
We are interested in getting public feedback and input on our project design and public access ideas. You can submit a public comment through our survey form here. Additionally, please join us for our second Community Advisory Meeting on Zoom to learn more about our project and share your ideas. We will announce this meeting on Facebook. The consultant for this project is Formation Environmental, LLC, with other groups pending as progress develops.
View our Frequently Asked Questions document, available both in Spanish and English, to get more information.
Funding for this project is being provided by the U.S Bureau of Reclamation. This project is being completed in cooperation with the Imperial Irrigation District and the California Department of Fish and Wildlife.
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Audubon California releases report detailing emerging wetlands at the Salton Sea.
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Opinion piece in Sunday's Los Angeles Times seeks to put some pressure on the state of Californi to take sufficient action to protect habitat and public health at the Salton Sea:
There have been glimmers of progress. Last fall, a U.S. Fish and Wildlife restoration project got under way at Red Hill Bay in the federal Sonny Bono Wildlife Refuge at the lake. It will transform 420 acres of dried-out landscape into shorebird habitat again, and it is already fully funded, leaving the $30 million promised by Washington in September for other projects.
At about the same time the feds went to work at Red Hill Bay, Brown signed a law that mandates the restoration of up to 12,000 acres of exposed lake bed by 2020 (the $80.5 million he set aside in the summer is a down payment on the mandate).
However, even if all pending restoration projects go forward (most haven’t broken ground) only 3,000 acres of dry lake bed would be reclaimed by 2020. A greater sense of urgency is needed if even the most modest of goals is to be met.
Southern California ecology researchers have a strong opinion piece in Sunday's Sacramento Bee about how the imminent diversions of water from the Salton Sea in 2018 could be disastrous for the hundreds of thousands who live around it:
"In January 2018, water that had been flowing into the Salton Sea will be diverted from the Imperial Valley and sent to urban water districts. As a result, the Salton Sea will shrink rapidly, leaving behind vast areas of dry lake bed. These exposed beaches will be a source of highly toxic, wind-blown dust affecting the health of hundreds of thousands of Californians living in the Coachella and Imperial valleys."
In the latest news in the ongoing battle of a federal government plan to kill thousands of Double-crested Cormorants in Oregon, a judge last week ruled that the Army Corps of Engineers violated the law when it refused to consider other ways to help endangered salmon. The judge, however, allowed the killing to continue. The Audubon Society of Portland has been leading the legal battle. This issue has been particularly compelling for us at Audubon California given the collapse of a major breeding colony at the Salton Sea.
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