In a constantly changing world, the protection of our planet’s endangered species and ecosystems is a priority for ecologists. A marsh bird the size of a chicken, the Yuma Ridgway's rail is gray-brown above and buffy-cinnamon below, mottled brown or gray on its rump and has brownish-gray cheeks and flanks barred with black … Historically, cattail/bulrush marshes in the Colorado River Delta were the likely stronghold for the species. The Yuma clapper rail (Rallus longirostris yumanensis) also known as Yuma Ridgway's rail (R. obsoletus yumanensis), is a large, gray brown to dull cinnamon rail, with a slightly down curved bill and long legs and toes relative to the body. The "Yuma" Clapper Rail inhabits freshwater marsh along the lower Colorado River and nearby areas. By supporting Audubon Arizona, your business can reach thousands of new potential customers. We launched the project to evaluate suitable habitat for the rail on the Gila River, with a mix of spatial analysis using Geographic Information Systems (GIS) mapping tools and field measurement of marsh habitats. We documented a novel and severe chigger mite infestation in the Yuma Ridgway's Rails in southwestern Arizona in 2017. The Salton Sea is often construed by the news, documentaries, and other blogs as a post-apocalyptic wasteland that is devoid of life. Read more about Audubon's fellowship programs. The Yuma ridgway’s rail, formerly known as the Yuma clapper rail, makes its home in the wetlands and flatlands ranging from the Colorado River Delta in Mexico up the Colorado River to southern Nevada. The name “Clapper Rail” was … The goal: gather and analyze data around the distribution of the rail, and develop a science-driven action plan with specific recommendations for habitat conservation and restoration. To support this project and other science-based conservation action, donate to the Tice Supplee Fund for Science and Conservation. Photo: Claudio Contreras Koob. You can help restore an urban river, teach kids about nature, protect habitat for birds, and much more. Stay tuned for updates from the field in the New Year. They prefer younger stands of cattail and bulrush, and eat crayfish, freshwater clams, and other invertebrates. Nina Mason Pulliam Rio Salado Audubon Center, Arthur L. and Elaine V. Johnson Foundation. Email: tws@wildlife.org Headquarters Location: 425 Barlow Pl, Suite 200 It is one of the smaller subspecies of clapper rails. Any “Clapper Rail” observed in California, Nevada, or Arizona is now this species. Ridgway’s Rail includes the “California” (obsoletus), “Yuma” (yumanensis), and “Light-footed” (levipes) subspecies, plus others farther south in Mexico. Ridgway's Rails live in saltmarsh swamps with extensive vegetation, which they use as refuges, especially at... Food. 2014, click for link. Fish and Wildlife Service 2010, Eddleman and Conway 2018). No Yuma Ridgway’s rail, black rail, or American bittern were identified. Yuma Ridgway’s rail (Rallus longirostris yumanensis) is the only subspecies of Ridgway’s rail found in freshwater marshes. Typically secretive and rarely seen, most usually know the bird is around when it vocalizes— letting off a repetitive, sharp clapping. Photo: Adam Stein. Modifying it to “Yuma Ridgway’s Rail” seems awkward, but could work. A Yuma Ridgway’s rail was heard kekking on Route 4 (Clark County’s inlieu fee mitigation wetlands), in the most southern of the large wetland cells- , on April 19 and on May 3. The greatest threat to the Yuma Ridgway’s rail is that without active management and protection of water sources supporting the habitat, these habitat areas will be permanently lost. Our email newsletter shares the latest programs and initiatives. Photo: Tice Supplee, Michael monitoring invertebrate prey availability with a crayfish trap. Habitat quality on Routes 2 and 3 was fair to goodand in the Mitigation Wetlands (Route 4), it was good to excellent, with the latter providing the highest quality potentially suitable nesting habitat for Yuma Ridgway’s rail in the study area. Other threats to this species include continuing land use changes in floodplains, human activities, environmental contaminants (particularly increases in selenium levels), and reductions in connectivity between core habitat areas. Something similar could be done with levipes (SE), formerly called “Light-footed Clapper Rail.” But how about our local obsoletus, formerly called “California Clapper Rail?” One wouldn’t want to call it “California Ridgway (formerly Clapper) Rail… The Yuma race is a federally endangered species found in the marshes of the lower Colorado River, the Salton Sea in California, the Ciénega de Santa Clara in Mexico, and the Gila River west of Phoenix, Arizona. However, this is an incorrect portrayal that has taken hold, most likely for its dramatic effect. The National Audubon Society protects birds and the places they need, today and tomorrow. Eamon hopes to gather data on a bigger level. From left to right: Tice Supplee, Elija Flores, Michael Montano, Talia Stone, Mia McGehee, and Dan Hite. Your support helps us protect birds, wildlife and their habitats, and educate the conservation leaders of tomorrow. Draft Revised Recovery Plan for the Yuma Clapper Rail: RD(1) 2: Arizona Ecological Services Field Office (602) 242-0210: Yuma Ridgways (clapper) rail: Rallus obsoletus [=longirostris] yumanensis: 2: 2.2.3: Evaluation of rail dispersal and seasonal movements between habitats. YUMA RIDGWAY'S RAIL, Salton Sea, CA - YouTube Sonny Bono Salton Sea National Wildlife Refuge, CAJanuary 1 & 2, 2016 @ North end of Garst RoadStarring YUMA RIDGWAY'S RAIL A … Our Mackenzie fellows and Dangermond fellow are all actively involved in the project, collecting data and fleshing out the GIS model. Ridgway's Rails are opportunistic and omnivorous, and their food selection reflects what’s available in their... Nesting. Ridgway's Rail Life History Habitat. Historically, cattail/bulrush marshes in the Colorado River Delta were the likely stronghold for the species. The Yuma Ridgeway's Rail is an endemic bird in the lower basin and the Colorado River delta, and is protected in Mexico and the United States. Aaron Maizlish, Ridgway’s Rail. Documents Include: - Survey Revision … The Yuma Ridgway's Rail (Rallus obsoletus yumanensis), a subspecies of the Ridgway's Rail, is a brown marsh bird about the size of a chicken. With adults standing at about 8 inches (in) (20‐23 centimeters (cm)) tall. Photo: Adam Stein, The field crew. The endangered Yuma Ridgway’s rails (Rallus obsoletus yumanensis), historically known as Yuma clapper rails, are found in California, Arizona and Mexico. The Wildlife Society Mailing Address: 25 Century Blvd, Suite 505. donate to the Tice Supplee Fund for Science and Conservation. Take a look at shots from recent field work: Using fellows for the rail project increases our capacity to execute the project while providing meaningful opportunities to people who are underrepresented in conservation. The Yuma Ridgway’s rail is brown and gray, and can be found in California, Arizona, Nevada and northern Mexico. Coloring is light grey to dark brown on the upper body a tawny‐orange breast, and orange legs. Ongoing Current: FY 2018: U.S. Along the Pacific Coast, strictly a bird of salt marsh, sometimes in adjacent brackish marsh. The third subspecies, the Yuma Ridgway’s Rail of the Salton Sea, is the only one to consistently inhabit freshwater or alkali marshes, with open water surrounded by cattails and bulrushes. Involving youth in on-the-ground fieldwork furthers our commitment to inspire the next generation of conservation leaders, and diversifies our movement. … Habitat quality on Routes 2 and 3 was fair to good,but the Mitigation Wetla nds (Route 4) still Photo: Adam Stein, Elija and Dan taking water depth measurements. SPECIES DESCRIPTION: The Yuma Ridgway’s rail is one of the smaller subspecies of the Ridgway’s rail. Large, chickenlike rail of mangroves and fresh marshes in lowlands. We documented a novel and severe chigger mite infestation in the Yuma Ridgway's Rails in southwestern Arizona in 2017. • Rallus o. obsoletus, formerly California clapper rail, nominate subspecies Audubon Arizona received a 2018 SJV Awards Program grant to develop a GIS based habitat prioritization model for the Yuma Ridgway’s Rail (Rallus obsoletus yumanensis), a subspecies of the Ridgway’s Rail, and a federally endangered species. Legal Notices Privacy Policy Contact National Audubon, Mackenzie Fellows Dan Hite and Michael Montano taking water depth measurements. Yuma Ridgway's Rails (Rallus obsoletus yumanensis) are federally endangered birds endemic to wetlands throughout the Lower Colorado River Basin in Nevada, California, Arizona, and Mexico. Existing habitats are primarily either human-made, as are the managed ponds at Salton Sea or the effluent-supported marshes at the Cienega de Santa Clara, or formed behind dams and diversions on the Lower Colorado River at the time those structures were created. Thanks to funding from the Arthur L. and Elaine V. Johnson Foundation and Sonoran Joint Venture, Audubon Arizona is now working with partner agencies and communities to see if a home for this bird can be included in river restoration projects. Yuma Ridgway’s Rails are considered largely non-migratory because telemetry studies in the 1980s and 1990s reported most rails remained in small home ranges all year. This entire habitat is subject to natural successional processes that reduce habitat value over time without also being subject to natural restorative events generated by a natural hydrograph. The Yuma Ridgway’s Rail — a chicken-sized bird native to the banks of the Colorado River — lives in marshy regions that are disappearing due to damming of the river. Spread the word. Audubon’s present theory is that agricultural outflow sites and drainages create important marsh habitat and foraging areas for the rails. Yuma Ridgway's Rail. Photo: Tice Supplee, Tice, Elija, and Mackenzie Fellow Mia McGehee recording data. Researchers used @Landsat data to identify where rails are most likely to thrive. https://go.nasa.gov/38Tm2j2 Yuma Ridgway’s rail (Rallus longirostris yumanensis) is the only subspecies of Ridgway’s rail found in freshwater marshes. In San Diego County, the Tijuana River Valley area hosts the largest population of Light-footed Ridgway’s Rails, although a few can be found at the Buena Vista Lagoon. Its population decreased due to loss of wetlands in the basin, which is why it is considered to be in danger of extinction. The rail relies on the cattail marshes in the region, which in turn rely on periodic disturbances–like the flooding of the Lower Colorado River–to reset marsh succession and wash away dead marsh vegetation. Three subspecies of Ridgway’s rail are found within the United States: the California Ridgway’s Rail, Yuma Ridgway’s rail, and Light-footed Ridgway’s rail. Little was known about the Yuma Ridgway’s rails, and researchers had previously assumed the birds weren’t migratory. No similar large rails in its range. The federally endangered Yuma Ridgway’s rail (Rallus obsoletus yumanensis) inhabits emergent marshes throughout the Lower Colorado River Basin and around the Salton Sea in California.Emergent marshes around the Salton Sea support one of the largest remaining populations of Yuma Ridgway’s rails in the U.S. (U.S. These changes could affect their foraging habitat given that Yuma Ridgway’s Rails specialize in eating small fish, crustaceans, mollusks and aquatic insects. Heard more often than seen; its main call is a rhythmic dry chatter. Thanks to the Arthur L. and Elaine V. Johnson Foundation and Sonoran Joint Venture, Audubon's project to protect the marsh bird is underway. Reference, Map Data Source: California Wildlife Habitat Relationship (CWHR), Photo credits: header (cropped) and featured image – Dr. Courtney Conway USGS on Flickr, Copyright © 2020 The California Biologist's Handbook, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), California Environmental Quality Act (CEQA), Section 1602 – Lake and Streambed Alteration Agreement, CESA – Section 2081 Incidental Take Permit, Natural Community Conservation Plan (NCCP), Standardized North American Marsh Bird Monitoring Protocols – 2006, California Wildlife Habitat Relationship (CWHR). The U.S. population has declined in recent years for unknown reasons. Note the large size, rusty neck and breast, barred flanks, and long, mostly orange beak. Both of our California tours record this rare species annually, with our Central Coast trip finding the ‘ San Francisco Bay Rail ‘, and our South Coast, Deserts, & Mountains trip recording both ‘ Light-footed Rail ‘ and ‘ Yuma Rail ‘. The Ridgway’s rail is a federal and state listed endangered species that occurs in wetlands along the Pacific Coast and from the Lower Colorado River drainage to southern Baja California. There are more rail populations along the Gila River … National Audubon Society 2017 Yuma Ridgway's Rail Project Evaluation Protocol. Read more about Audubon's fellowship programs. Yuma Ridgway’s Rail. Want to reach a new audience? Photo: Adam Stein, Director of Bird Conservation Tice Supplee, Dangermond Fellow Elija Tores, and Mackenzie Fellow Talia Stone, recording data. Yuma Ridgway’s Rails have been considered non‐migratory, but incidental mortalities at solar facilities > 50 km from any rail habitat called this assumption into question. Using GIS, a spatial prioritization map will be developed to serve as a scientific snapshot of the species's habitat—identifying locations where the rail is likely to occur, and where restoration could generate additional habitat for it. There are six subspecies, isolated into four main groups of the endangered Ridgway’s Rail; Light-footed, San Francisco Bay, Yuma, and South Baja. The virtual elimination of freshwater flows down the Lower Colorado River to the Delta due to diversions from the river for agriculture and municipal uses destroyed that habitat. As Arizona turns farm fields into houses, and water is diverted from rivers to accommodate development, marsh habitat is disappearing—and so is the rail. Recently, a group of researchers at the University of Idaho have worked to combine their extensive on-the-ground research of the endangered Yuma Ridgway’s rail with Landsat’s vast archive, to create a habitat suitability model that can be used by land managers. Nashville, TN 37214 Phone: (301) 897-9770. It’s the least you can do. Experts were startled when multiple Yuma Ridgway’s Rail carcasses were found at solar facilities far from any wetlands in … Virginia Rail is much smaller, with blue-gray cheeks. A close relative of the Clapper Rail of the Atlantic and Gulf Coasts, and … Salary: $2000 per month + Housing Dates: Approximately 1 June 2019 - 31 July 2019 Last day to apply: 5/1/19 Description: We are studying the migration and dispersal behavior of endangered Yuma Ridgway’s rails in the southwestern U.S. Our research will help inform year-round conservation of … The Yuma Ridgway's Rail ( Rallus obsoletus yumanensis ), a subspecies of the Ridgway's Rail, is a brown marsh bird about the size of a chicken. Typically secretive and rarely seen, most usually know the bird is around when it vocalizes— letting off a repetitive, sharp clapping. Yuma Ridgway's Rails (Rallus obsoletus yumanensis) are federally endangered birds endemic to wetlands throughout the Lower Colorado River Basin in Nevada, California, Arizona, and Mexico.The U.S. population has declined in recent years for unknown reasons.