U.S. Fish and Wildlife Service, 1984. Endangered and threatened wildlife and plants: determination of endangered status for seven birds and two bats on Guam and the Northern Mariana Islands. Federal Register 50 CFR Part 17 49(167), 33881–33885. U.S. Fish and Wildlife Service, 2004. Draft Revised Recovery Plan for the Sihek or Guam Micronesian Kingfisher (Halcyon cinnamomina cinnamomina). U.S. Fish and Wildlife Service, Portland, OR. External links BirdLife Species Factsheet. Micronesian kingfisher Naturalis The Netherlands Philadelphia Zoo - Description of Guam Micronesian kingfisher Conservation efforts United States Fish and Wildlife Service - Threatened and Endangered Animals in the Pacific Islands. US Geological Survey - USGS Micronesian Avifauna Conservation Projects US Geological Survey - The Brown Treesnake on Guam. Guam kingfisher Birds of Guam Guam kingfisher ESA endangered species