@Noah Butas The zoo has a breeding program for them and have probably between 5 and 10. There are others in the US, though, they're just not very common. Here are the places with pictures of Andean Geese in the ZooChat gallery:
Wildlife World Zoo, Aquarium, & Safari Park in Maricopa County, Arizona
Sylvan Heights Bird Park in Halifax County, North Carolina
Tracy Aviary & Botanical Gardens in Salt Lake City, Utah
