The most highly endangered duck species, the Laysan teal, had a very successful 2007 breeding season at a refuge that was once part of its historic range, according to U.S. Geological Survey (USGS) and U.S. Fish & Wildlife Service biologists. This year's total tally of adult and fledgling Laysan ducks, now residing on Midway Atoll National Wildlife Refuge (NWR), rose during 2007 to approximately 200 ducks.
This is only the third year since these highly endangered birds, also known as Laysan teal, were trapped in the wild and carefully transported by ship from their only remaining population on Laysan Island to re-establish a second population.
"These rare, wild ducks could not co-exist with rats, migrate, or disperse away from Laysan Island, so a few birds were translocated by ship to restore the species to a larger range," USGS wildlife researcher Michelle Reynolds, coordinator for the project, explained. "Now Laysan ducks are found on three rat-free islands for the first time in hundreds of years and are flying between islands at Midway Atoll."
|Map of study sites: Laysan Island Hawaiian Islands National Wildlife Refuge and Midway Atoll, NWR. The source population occurs on Laysan and the translocated population on Midway Atoll NWR.