RSPB’s Hen Harrier LIFE project has fitted more than 10 young hen harriers with satellite tags in Scotland this summer.
The EU LIFE funded project tagged birds from the Borders to the Highlands, with the generous support and assistance from of a variety of helpers.
Hen harriers are one of our rarest and most persecuted birds of prey. The satellite tags allow the project to follow the lives of the young birds as they strike out on their own. The last British Isles hen harrier population survey in 2016 put their numbers at just 575 territorial pairs, an overall significant decline of 24% since 2004.
Before tagging the chicks the project monitors hen harrier nests to understand more about how their breeding success varies year to year and why they sometimes fail. Scotland is the stronghold for these birds in the British Isles with 460 pairs according the 2016 survey.
The information gathered from birds tagged in previous years has revealed important information about how the young birds spend their first few years of life. Two of the birds tagged in Scotland last summer headed over to Ireland for the winter before returning this spring.
The tags also reveal some worrying turns of events, with some birds either suddenly or inexplicably disappearing or being illegally killed – almost always on or close to grouse moors.
Marci, tagged in 2018 at Mar Lodge, was last recorded in the Cairngorms National Park near Strathdon. Skylar, tagged in 2017 in Argyll disappeared close to Elvanfoot. Rannoch, tagged in 2017, was found dead in an illegally set spring trap on a Perthshire grouse moor in May.
Dr Cathleen Thomas, senior project manager for Hen Harrier LIFE, said: ‘It’s a real privilege to work with and follow the journeys of these incredible birds of prey and the sight of one of them skydancing never fails to take my breath away.
‘However, very few people get to experience such a spectacle as the British Isles are missing 80% of the breeding hen harriers they could support. These birds face enough natural challenges in their first few years of life trying to avoid predators and learn how to hunt without the added pressure of illegal killing, shooting and trapping by humans.
‘With Scotland the stronghold for the British hen harrier population, tagging these young birds here and understanding what is happening to them is crucial for our efforts to create a more secure long-term future for the species.’
RSPB Scotland is calling for licensing of the industry to be introduced to bring an end to the continued illegal killing of birds of prey.
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