22 May 2014 Last updated at 15:58
The wooden door of the mill was damaged and the barn owls taken
Six young barn owls have been stolen from a nest inside a mill in Norfolk.
The door of Toft Monks Mill on Haddiscoe Island was "completely smashed apart" as thieves went into the building and took the birds, believed to be about three weeks old.
Norfolk Police said it was investigating and wanted to speak to five teenagers seen near the mill.
They were spotted nearby on Sunday, the day before the break-in was noticed.
Mr Newton said the barn owls' mother, which has been seen in the mill since the theft, laid the eggs last month.