Endangered curlew chicks have been ทดลองเล่นสล็อตฟรีไม่ต้องฝาก released at the Queen's Sandringham Estate in Norfolk, watched by the Prince of Wales.
More than 80 chicks were hand-reared at the nearby Pensthorpe Natural Park after eggs were collected from Ministry of Defence (MoD) sites.
Eggs at MoD sites are usually destroyed as they "pose a huge danger to aviation", the park said.
The project aims to boost the birds' population in the east of England.
The Eurasian curlew is Europe's largest wading bird and is now red-listed, meaning it is of the highest conservation priority, needing urgent action.
The UK is home to almost a quarter of the global breeding pairs - about 58,500 pairs - but the species has declined significantly since the 1970s, due to loss of habitat and predation.
The project, led by Natural England, collected 147 eggs from eight military and civilian airfields across England.
More than 100 were taken to a rearing facility at Pensthorpe Conservation Trust, and a further 41 taken by the Wildfowl and Wetlands Trust for a project in Dartmoor.
Dozens of the fully-fledged chicks are now being released at two Norfolk sites - the Sandringham Estate, and Wild Ken Hill, a sustainable farming project bordering The Wash which this year played host to BBC Springwatch.
"Today's release on the Sandringham Estate marks a significant milestone for the recovery of this iconic bird," said Tony Juniper, chairman of Natural England.