The comeback of the white-tailed eagle in Ireland is a remarkable story of conservation success and resilience. Once driven to extinction by human persecution, these majestic birds are now soaring across the skies once again, thanks to a dedicated reintroduction program. This article explores the journey of their comeback, the challenges faced, and the ongoing efforts to ensure their survival.
A Species Lost to Persecution
The white-tailed eagle, also known as the white-tailed sea eagle, was once a common sight in Ireland's skies. However, by the 19th century, human persecution had pushed the species to the brink of extinction. The eagles were seen as a threat to livestock, and shooting and poisoning became common methods to eliminate them. By 1912, they were officially declared extinct in Ireland.
The Reintroduction Program
In 2007, a collaborative effort between Ireland's National Parks and Wildlife Service, the Norwegian Institute for Nature Research, and the Golden Eagle Trust marked the beginning of a new chapter for the white-tailed eagle. The first phase of the reintroduction program involved releasing 100 young eagles from Norway at Killarney National Park in County Kerry. This was a crucial step towards restoring the species to its native land.
Over the next few years, the eagles gradually spread across Ireland. The first successful breeding in over a century occurred in 2012 at Lough Derg in County Clare. By 2020, the population had grown significantly, with eight to ten breeding pairs fledge 31 chicks in various counties. However, the population remained vulnerable to various threats.
Strengthening the Population
Recognizing the need for further support, the National Parks and Wildlife Service launched a second phase of the reintroduction program in 2020. This phase focused on raising young eagles in secure facilities in Ireland before releasing them once they were ready to fly. Satellite tags were fitted to the birds, allowing conservationists to track their movements and survival rates. The program continued until 2025, with 26 chicks released in its final year, bringing the total number of reintroduced chicks to 245.
The program's success is evident in the fact that Irish-born eagles are now reproducing in the wild. In July 2026, a pair of white-tailed sea eagles successfully bred at Killarney's Lough Léin for the fifth consecutive year, with two young birds fledging the nest. There are now 17 known breeding pairs across Ireland, and the population is estimated to be around 150 birds, considered sufficient for a self-sustaining population.
A Changing Landscape
The reintroduction program has not only brought back the eagles but has also changed attitudes and practices. Conservationists worked closely with farmers and local communities to ensure the eagles' safety and promote coexistence. This cooperation is vital for the long-term success of the project.
Europe's Largest Bird of Prey
The white-tailed eagle is one of Europe's largest birds of prey, with a wingspan of around 2.5 meters. Their diet includes fish, waterbirds, rabbits, hares, and carrion. They typically build their territories around coastlines and large freshwater lakes. The species is slow-breeding, with females laying one to three eggs in late March or early April, and the chicks remaining dependent on their parents for several weeks after fledging.
Ongoing Challenges
Despite the progress, the eagles' comeback is not without risks. Illegal poisoning and shooting continue to threaten the population. In 2025, an investigation revealed the suspected poisoning of Caimin, an older breeding eagle, and the shooting of another reintroduced eagle near Lough Owel in County Westmeath. Avian influenza, adverse weather, lead poisoning, and collisions with wind turbines have also contributed to eagle deaths.
A Species Rising Again
The sight of young white-tailed eagles leaving their nests in Killarney is a testament to the power of conservation. What seemed impossible a few decades ago is now a reality. The white-tailed eagle's comeback in Ireland serves as an inspiring example of how dedicated efforts can bring back a species once lost to human persecution.
