A rare Montagu’s Harrier chick, known as “FH”, has tragically lost its life after being struck by a train while migrating across mainland Europe. This unfortunate incident has shone a spotlight on the precarious existence of this critically endangered species, which faces numerous threats during its migration.
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The chick was one of six young Montagu’s Harriers raised this year by the only known breeding male of the species in the United Kingdom. This milestone event gave conservationists a glimmer of hope for a bird that has seen a significant decline in its population in the UK. Researchers had fitted FH with a satellite tag shortly before her debut flight in July, allowing them to track her movements across Europe.
Initially, concerns emerged when the satellite tag recorded a drop in temperature, an indicator that FH may have perished. Further investigation revealed that her remains were located along a railway line, where they had been carried about 30 miles from the original site of the incident. The Royal Society for the Protection of Birds (RSPB), which had been closely monitoring the situation, confirmed the heartbreaking news that the juvenile had indeed been killed by a train.
“This is a terrible shock for the team and just highlights the unpredictability of working with this species,” the RSPB remarked in a statement, expressing their dismay over the loss. FH was the offspring of “AU”, the only adult male Montagu’s Harrier known to be breeding in the UK. This year, AU successfully bred with two females, resulting in six juveniles across two nests, marking a hopeful return for the species after a drought of successful nests between 2020 and 2024.
The Montagu’s Harrier has been classified as critically endangered in the UK, earning a spot on the country’s Red List of at-risk birds since 2021. The recent breeding success offered a glimmer of optimism, showing that there is still potential for the species’ recovery. Among the other five chicks is “FU”, affectionately nicknamed “Dave” by fieldworkers after an initial misidentification. FU has been recently spotted alive and thriving at an RSPB reserve in Essex.
Montagu’s Harriers are migratory birds, travelling annually to Africa before returning to Europe to breed. Their nesting habits, often located on the ground in agricultural fields, leave them vulnerable to a variety of hazards. This includes not just natural predators but also dangers posed by farming equipment and, as illustrated by FH’s fate, the unpredictable threats encountered during migrations.
The death of FH serves as a crucial reminder of the challenges these birds face. Each year, migratory species must navigate not only natural obstacles but also a variety of human-made hazards that threaten their survival. Conservationists are working diligently to understand and mitigate these dangers, but the road to recovery for the Montagu’s Harrier remains steep.
With ongoing efforts to monitor the movements and survival of remaining chicks, there is hope that the remaining members of this year’s brood can safely complete their migration and contribute to the future of this endangered species. The work of organisations like the RSPB is vital in ensuring we do not lose sight of these majestic birds and their habitats, so future generations can witness their graceful presence in the skies above the UK.
The loss of FH is indeed a setback, yet it amplifies the urgency for conservation efforts to protect this vulnerable species. As researchers continue to gather data and refine strategies for safeguarding these birds, the resilience of the Montagu’s Harrier will be essential in the fight against extinction.