Ancient island life on North Uist left children starving and villages covered in sand due to devastating storms, new research has revealed.

Excavations at the Udal on the Outer Hebridean island have uncovered some of the hardships islanders faced during Neolithic and early Bronze Age Scotland.

Analysis of two skeletons discovered at the site indicates they suffered a lack of food as children, including periods of starvation.

While archaeologists also believe two round buildings discovered at the Udal may have been the last surviving structures of a large settlement that was covered over by a thick layer of sand, similar to Skara Brae on Orkney.

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Beverley Ballin Smith, of GUARD Archaeology, who has been leading the post-excavation work, said: “The storm that brought the sand covered fields and grazing lands in addition to the village, from dunes to the west.

“The effects were so severe that the buildings and the farming land had to be abandoned and people moved inland.”

The research, published in a new book, reveals that islanders were then hit by further storms, with one bringing a flood so severe that it destroyed their new fields and spread a thick stone and shingle beach across them.

The devastating weather damaged crops and killed animals, impacting on the health of residents, as shown in the two skeletons which were discovered in a burial cairn.

Ms Ballin Smith added: “Our Neolithic and Bronze Age ancestors lived through climate change events such as dramatic sea-level rise and increased storminess, and trauma such as loss of fields, crops and animals.

“They had to relocate their settlement and houses to safer areas.”

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The book, entitled Life on the Edge: The Neolithic and Bronze Age of Iain Crawford’s Udal, North Uist, is the result of several years of post-excavation work on the smallest of the Udal sites, which was exposed by coastal erosion after an exceptionally high tide in 1974.

The late archaeologist Iain Crawford spent many years at the site but was unable to complete his work due to illness. The new book is edited by Ms Ballin Smith who has spent years analysing his excavations.

Malcolm Burr, Chief Executive of Western Isles Council, said: “While the archaeology of the Western Isles is as rich, diverse and intriguing as that of the rest of Scotland, it is less well known.

“Comhairle nan Eilean Siar and its partners are working hard to see this position change.

“The excavations at the Udal recovered fragile evidence in the face of erosion by sea, storm and the ravages of time.

“The story told by these structures and artefacts reflects the earliest centuries of communities’ life experiences on the Udal headland from some six thousand years ago, one of the longest and most fascinating time lines in the archaeology of Scotland.”

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The new book is available from Archaeopress Publishing Ltd for £25. A free version is also available to download at www.archaeology.press.