Montague Island (Baja California)
Montague Island, known in Spanish as Isla Montague, is an island at the mouth of the Colorado River in the municipality of Mexicali, Baja California, Mexico, and is part of the Colorado River Delta and part of a broader region called the Salton Trough.The climate in the region of the Island is extremely hot and arid, with average annual rainfall of 2.4 in (60 mm).[4] The birds nesting on Montague Island have reacted strongly to El Niño, with brown boobies being replaced by blue-footed boobies, and an increase in nesting of least, elegant, and royal terns, as well as black skimmers.[5] Montague Island is one of the few locations where Mulinia coloradoensis, an endangered species of clam, is found.This species was once extremely abundant near the mouth of the Colorado river, but now only exists in a few isolated places.