The Oregon Zoo is a nonprofit organization, and a member of the Association of Zoos and Aquariums. To aid in conservation, the zoo has a survival program to augment the populations of 21 endangered species. If you visit in the summer, you will be able to attend live concerts. If you plan a trip in the winter, you will be able to witness ZooLights, the holiday light show. Whichever season you plan to visit, you won't be disappointed with Oregon's most popular tourist attraction.