Humedales de Yavaros-Moroncarit. 02/02/10; Sonora; 13,627 ha; 26º43'39"N 109º31'00"W. A lagoon complex considered to be a critical habitat for a variety of species, some of them under legal protection in Mexico, such as the Yellow-footed gull (Larus livens), the Peregine Falcon (Falco peregrinus), and Black-Bellied Brent Goose (Branta bernicla nigricans). There are also 66 species of birds that are on the lists of priority species for the North American Wetlands Conservation Act (NAWCA) and the Neotropical Migratory Bird Conservation Act (NBCA). Each year over 50,000 individuals of shorebirds visit the marshes, mud flats and mangroves of the Moroncarit lagoon, and it is also an important wintering site for 47,000 ducks, geese and other waterfowl. Due to its high biodiversity and versatility in the use of natural resources, the southern coast of Sonora is a marine priority area of Mexico. The Gray Whale (Eschrichtius robustus) has been breeding here since 1988, and other marine mammals recorded are the Killer Whale (Orcinus orca) and the Sea Lion (Zalophus californianus). Among the adverse factors affecting the site are the uncontrolled fishing and tourism activities. The most common land uses within the site include agriculture and ranching. Ramsar Site no. 1984. Most recent RIS information: 2011.