Nightjar Populations Show Signs of Recovery in Ireland After Dramatic Decline
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A glimmer of hope has emerged for the nightjar population in Ireland, a species once on the brink of extinction, according to new findings from Birdwatch Ireland. After decades of decline, recent surveys indicate a small but significant resurgence, offering a potential turning point for the elusive bird.
A Vanishing Song
For generations, the distinctive, churring call of the nightjar was a familiar sound across the island of Ireland. So well-known was the call that Irish speakers gave the bird the name túirne lín, meaning “spinning wheel,” a direct reference to the sound produced by the male of the species. However, a conservation officer with Birdwatch Ireland noted that nightjar numbers “diminished dramatically” throughout the latter half of the 20th century.
The primary drivers of this decline were identified as habitat loss and the widespread use of pesticides, as nightjars rely heavily on insects for sustenance. By a 2024 report, the situation appeared dire. “A few years ago, the general consensus was that we had effectively lost nightjars,” a senior official stated.
A Southeast Stronghold Emerges
But a coordinated survey conducted in the summer of 2024 revealed a surprising development: evidence of a small number of nightjars persisting in the southeast of Ireland. This region was quickly identified as the “last remaining stronghold” for the species on the island. The initial study focused on counties Kilkenny and Wexford, where researchers spent “hundreds of hours” recording birdsong.
While nightjar calls were detected at two survey sites, only one breeding pair was confirmed. Undeterred, the research team expanded their efforts to include counties Waterford and Tipperary. This expanded study yielded a significant breakthrough: footage of the breeding pair’s nest, captured from a safe distance using a drone equipped with a thermal sensor. To protect the vulnerable birds, the precise location of the nest is being kept confidential.
Unexpected Sightings and Future Outlook
The discovery of a nightjar as far north as Belfast surprised researchers. A conservation expert explained that the species is naturally elusive and “stays ‘under the radar’,” suggesting that small populations may exist in areas yet to be thoroughly surveyed.
The results of Birdwatch Ireland’s comprehensive 2025 nightjar survey are anticipated in the coming weeks, promising a more detailed understanding of the species’ current distribution and population trends. This data will be crucial in informing future conservation strategies and ensuring the long-term survival of the nightjar in Ireland.
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