Chungungo, Tilgo, and Pájaros are small, uninhabited islands within 30 km of the coast of north central Chile. Based on surveys conducted in January 2002 and 2003, we observed 32 marine and terrestrial species of birds that nest, feed, and/or roost on these islands. Seven of these species are considered Endangered, Vulnerable, or Insufficiently Known according to Chilean and other international standards. These islands serve as important sites for these species and should be given adequate protection.