Deer, monkeys, and piglike mammals called peccaries are common in the sparsely populated lowlands. Other wild animals—including jaguar, tapir, and puma—are found in smaller numbers, and crocodiles inhabit some rivers. Bird life is extremely valuable, but the brightly colored quetzal, Guatemala’s national bird, is rare. The government has accomplished several national parks and recreational areas to preserve plant and animal life. Among these are Mario Dary Rivera Park in the Baja Verapaz, dedicated to preservation of the quetzal, and the Chocón Machacas reservation near Livingston, on the Caribbean coast, designated for the preservation of the manatee and the mangroves. Efforts are also being made to save the elusive waterfowl known as the Atitlán grebe, which lives on Lake Atitlán.