Two young ‘alalā were moved back into an aviary at the State of Hawai‘i’s Pu‘u Maka‘ala Natural Area Reserve last week in response to the challenges faced during the birds’ reintroduction.
A group of five birds was released into the protected reserve on Dec. 14.
Although the birds had been observed doing well and eating from feeders placed in the area, three birds were found dead over the last week.
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The confirmed cause of the deaths is currently unknown but conservationists hope to gather information about what happened to the birds through necropsy examinations.
John Vetter, a wildlife biologist with the state Department of Land and Natural Resources, Division of Forestry and Wildlife, said, “Some level of mortality is to be expected when reintroducing a species back into the wild and we were prepared for that possibility. The initial days of release are always the most difficult stage of any release program, and the level of uncertainty is also highest with the first release cohort. We decided to recapture the remaining birds to ensure their safety while we await the results of the necropsies, so that we can learn, respond and continue to strive for the long-term success of the alala.”
Pu‘u Maka‘ala Natural Area Reserve is an area that conservationists have worked to preserve, protecting native plants and species, and it represents the type of habitat where ‘Alalā originally lived before their numbers began to decline. The ‘alalā, or Hawaiian crow, has been extinct in the wild since 2002, preserved only at the Keauhou and Maui Bird Conservation Centers managed by San Diego Zoo Global’s Hawai‘i Endangered Bird Conservation Program.
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Bryce Masuda, conservation program manager of the Hawai‘i Endangered Bird Conservation Program, said, “The loss of these three birds is difficult for the entire community, including the many people who have cared for these birds since their hatch and have worked steadfastly to prepare for their release. Condolences for this loss have come from around the world.”
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