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Twenty five endangered birds have been released into the wild after being hand-reared since hatching to ensure their survival.

The rare black-tailed godwits were kept in their own shelter at the Wildfowl and Wetlands Trust site in Welney, on the Norfolk and Cambridgeshire border, before being released on Monday.

In what is believed to be a UK first, conservationists used a technique called "headstarting" to raise them from birth.

It involves animals and birds being reared in captivity until they become large enough to be let into the wild.