Task: Question Generation
Input (English): Passage: The Great Basin, Mojave Desert, and Colorado Plateau converge at Zion and the Kolob canyons. This, along with the varied topography of canyon–mesa country, differing soil types, and uneven water availability, provides diverse habitat for the equally diverse mix of plants and animals that live in the area. The park is home to 289 bird, 79 mammals, 28 reptiles, 7 fish, and 6 amphibian species. These organisms make their homes in one or more of four life zones found in the Park: desert, riparian, woodland, and coniferous forest.Desert conditions persist on canyon bottoms and rocky ledges away from perennial streams. Sagebrush, prickly pear cactus, and rabbitbrush, along with sacred datura and Indian paintbrush, are common. Utah penstemon and golden aster can also be found. Milkvetch and prince's plume are found in pockets of selenium-rich soils.Common daytime animals include mule deer, rock squirrels, pinyon jays, and whiptail and collared lizards. Desert cottontails, jackrabbits, and Merriam's kangaroo rats come out at night. Cougars, bobcats, coyotes, badgers, gray foxes, and ring-tail cats are the top predators.Cooler conditions persist at mid-elevation slopes, from 3,900 to 5,500 feet (1,200 to 1,700 m). Stunted forests of pinyon pine and juniper coexist here with manzanita shrubs, cliffrose, serviceberry, scrub oak, and yucca.  Stands of ponderosa pine, Gambel oak, manzanita and aspen populate the mesas and cliffs above 6,000 feet (1,800 m).
Golden eagles, red-tailed hawks, peregrine falcons, and white-throated swifts can be seen in the area.Desert bighorn sheep were reintroduced in the park in 1973. California condors were reintroduced in the Arizona Strip and in 2014 the first successful breeding of condors in the park was confirmed. Nineteen species of bat also live in the area.Boxelder, Fremont cottonwood, maple, and willow dominate riparian plant communities. Animals such as bank beavers, flannel-mouth suckers, gnatcatchers, dippers, canyon wrens, the virgin spinedace, and water striders all make their homes in the riparian zones.
Output (English): Desert bighorn sheep were reintroduced in what park in 1973?