For the third consecutive year (2003 – 05) headstarted Anegada Iguanas, Cyclura pinguis, have been returned to wild as part of the ongoing recovery program to restore this critically endangered iguana in their native environment. Twenty-four iguanas were released on 5-7 October bringing the total number of headstarted pinguis returned to the wild to 72. Over the next year, the iguana will be monitored by Kelly Bradley (Dallas Zoo) by radio-tracking. Prior to release, eight of the smallest iguanas received surgically-implanted radio transmitters, and the larger 16 were fitted with externally attached units (see photo). The October 2005 group included eight iguanas in the 450 gram size class, which is the smallest animals released to date. By incrementally reducing the size of at least some of the releases each year, researchers will determine the smallest size iguana that can survive in a habitat with feral cats. Cats are the leading cause of the decline of the Anegada Iguana in the wild, predating most all of the new hatchlings each year. Until this threat can be eliminated, the headstart program will continue to produce iguanas large enough to avoid being eaten by cats.