Conservation efforts in the United Kingdom have been focused on protecting a rare species of bird, the Montagu’s harrier. The recent success in safeguarding the British population of these birds can be largely credited to the exceptional breeding abilities of a single male bird known as AU. This 10-year-old bird has fathered 16 juveniles, with 10 offspring born in the last two years alone.
Mark Thomas, a conservationist with the Royal Society for the Protection of Birds (RSPB), emphasized AU’s vital role in sustaining the species in the UK, describing him as the primary supporter of the population. Montagu’s harriers, known for their migratory nature, face global decline and are categorized as a species of least concern by the International Union for Conservation of Nature.
The UK population of Montagu’s harriers has experienced significant fluctuations over the years, with a peak of 30 breeding pairs in the 1950s followed by periods of decline and resurgence. Currently, efforts are focused on preserving the existing bird population, with AU’s successful breeding activities in recent years contributing to a positive outlook for the species.
AU’s remarkable breeding success in 2025 and 2026 has resulted in the birth of six chicks from two nests, with hopes that his male offspring will eventually return to the UK for breeding. Conservationists have taken measures to protect the nests, ensuring the safety of the hatchlings from potential threats.
In a new initiative, satellite trackers have been attached to two juvenile harriers for the first time, allowing researchers to monitor their movements and potential return to the UK for breeding. This tracking technology will provide valuable data for conservation efforts and aid in safeguarding the future of the Montagu’s harrier population in the country.
