Cincinnati Zoo Bred Rare Kingfisher for Wild Release
The Cincinnati Zoo has successfully raised a sihek chick to support the recovery of the extinct-in-the-wild species.
Updated on Sept. 28, 2026 in Bird Watching
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The Cincinnati Zoo successfully bred a sihek chick, also known as the Guam kingfisher, to bolster the species' population. This effort is part of the Sihek Recovery Program, which aims to release up to eight zoo-raised birds into the wild on Palmyra Atoll.
Why it matters
The project represents a major step in restoring a bird that was wiped out in its native Guam habitat by invasive brown tree snakes. Because Guam remains an unsuitable environment, conservationists are establishing a new wild population on the protected Palmyra Atoll.
The sihek was considered extinct in the wild for 40 years before 2024. Conservationists are currently selecting up to 8 birds for potential release from a pool of 10 qualified chicks.
The players
Cincinnati Zoo
This facility serves as a critical breeding site for the sihek species and maintains a genetic database for conservation efforts.
Sihek Recovery Program
This organization manages the breeding and relocation of the Guam kingfisher to save the bird from extinction.
The details
After the brown tree snake devastated native populations in the 1940s, 29 birds were saved for a captive survival plan in the 1980s. Following a quarantine period in Florida, the new group of birds will join individuals already released on Palmyra Atoll, where a bird laid an egg in 2025.
Timeline
1940s: Invasive brown tree snakes were introduced to the island of Guam.
1980s: Conservationists captured 29 birds to begin a captive breeding program.
2024: The species was officially moved from extinct in the wild status.
2024: Nine birds were initially released onto Palmyra Atoll.
2025: A previously released bird laid its first egg in the wild.
Culture Shift
The relocation of captive-bred species to isolated, protected environments reflects a shift in conservation from static habitat preservation to active ecosystem reconstruction. This project mirrors efforts like the Pacific Islands Heritage Marine National Monument protections to secure biodiversity in high-risk zones.
Residents in Cincinnati can support these efforts by engaging with the zoo’s public educational programming regarding endangered species. The project highlights the zoo's direct role in global environmental science and the practical application of genetic databases in modern zoology.
The takeaway
The successful breeding and subsequent nesting of the sihek demonstrates that captive programs can effectively reverse decades of ecological decline. Readers interested in biodiversity can monitor the growth of these avian populations as they adapt to life on Palmyra Atoll.
Further reading
Learn more about local conservation efforts in our Bird Watching section.
Source note: This article includes information reported by Cincinnati Public Radio.
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