Southern Arizona is heaven for a birder. Many species that live most of the year in Mexico and Central America come this far north for a short time, in the spring and summer, but most of them don't go any farther north than that.
So if you want to see a Mexican Jay or a painted redstart or a vermillion flycatcher in the United States, you have to visit this corner of Southeastern Arizona.
Luckily that part of the state is dotted with parks and preserved land in a variety of unique habitats, like the San Rafael River, the Southwest Desert's last remaining undammed perennial river. Then there's always Chiricahua National Monument, a lesser-visited cluster of mountains full of pinnacles and balanced rocks of purple rhyolite that's also a rare example of a montane forest in far-southern Arizona,