Petrified Forest National Park, Navajo, Apache, Arizona, United States

Seven kinds of amphibians, which drink no water but absorb it through their permeable skins, have been identified in Petrified Forest National Park. tiger salamanders, found in grassland and near major drainages, are the only salamander species known in Arizona. Woodhouse’s toads, which are seldom seen, are the largest toads in the park. They like grasslands, riparian corridors, and developed areas. Red-spotted toads, most active in the rainy season, July through September, are found in rocky areas near streams and in canyons. The Great Plains toad, the most common toad in the park, prefers grasslands. Resident spadefoot toads include the New Mexico, plains, and Couch's varieties.
A survey conducted in 2006 identified 216 species of birds known to have occurred in Petrified Forest National Park since the park became a protected area in 1906. Of those, 33 species breed within the park, 6 other species probably do, and 18 species live in the park year-round. Thirty-five species live in the park only during the summer and 11 species only during the winter. The greatest diversity of birds occurs during fall and winter migrations.
Raptors, songbirds, and ground birds are found in the park's grassland, while the Puerco River's riparian corridor is a good place for year-round residents as well as migrants such as warblers, vireos, avocets, and killdeer. Developed areas around the visitor center and museum attract western tanagers, hermit warblers, house finches, and others. Occasional shorebirds and eastern birds also visit the park.
Birds commonly seen in the park include the common raven and the western meadowlark, known for its charming song. Anna's hummingbird, which can hover and fly backwards as well as forwards, is among the smallest birds in the park. The largest is the golden eagle, with a wingspan of up to 7 feet (2 m).