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RAF work to protect declining bird species on airfields

The quirky long and slender beak of the Eurasian Curlew is a rare sighting in UK, due to their declining population.

In 2018, only six nests were confirmed to hold chicks in Southern England and the bird was red listed as a Bird of Conservation Concern and a Priority Species.

Image shows a Eurasian Curlew, a small brown bird with a distinctively long beak thin beak, walking in grassland.

Unfortunately, Curlews favour the open grassland habitat of airfield, posing them as significant flight safety risks due to their small and lightweight build. This means their eggs can be destroyed under certain licences to prevent accidents to aircraft and pilots.

Image shows a Eurasian Curlew, a small brown bird with a distinctively long beak thin beak, in flight.

In 2019, the RAF began working with Natural England (NE) and the Wildfowl and Wetland Trust (WWT) to boost Curlew numbers. The Head Start Project saw 50 fledged Curlew’s released back into the wild, from the eggs reared in the facility at the Slimbridge Reserve.

Image shows civilian collecting bird eggs for transferring in small incubation box.

The Project expanded in 2021, with more airfields participating and later releasing 112 birds across the Duchy of Cornwall Estate, the Sandringham Estate and Wild Ken Hill – the base for the BBC Autumnwatch TV series.

Image shows civilians building a wooden bird structure in grasslands.

RAF Stations are further helping to boost Curlew numbers by monitoring nests and removing full clutches before they pose a flight risk. Mature birds are also being marked with small harmless tags; or tracked using radio and GPS tags. While Grounds Maintenance staff keep airfields safe by cutting grass to remove insect habitats and improve grass uptake.

Image shows a civilian holding a Eurasian Curlew, a small brown bird with a distinctively long beak thin beak, with a GPS tracking tag on its back.

The Eurasian Curlew Head Start Project has so far been incredibly successful, thanks to the immense coordination, teamwork, and enthusiasm of the staff involved; and their remarkable work was recognised during the 2020 Sanctuary Awards. Read more about the Project here.

Image shows the brown feathered wing of a Eurasian Curlew.

By continuing their work, it is hoped the Eurasian Curlews quirky long and slender beak will become a much more common sight in UK wildlife.

Image shows a Eurasian Curlew, a small brown bird with a distinctively long beak thin beak, walking through grasslands.