Glastonbury Festival 2013 all of a twitter as blue tits nest near Left Field tower

Glastonbury romance? Revellers watch the sunrise from the stone circle during the festival (Getty Images)

The erection of a steel tower which stands at the head of one of the music areas at the Glastonbury Festival has been delayed after wild birds were discovered in the structure.

The tower was built in 2004 by apprentices at the Appledore shipyard in Devon and has graced the entrance to the Left Field area of the festival ever since.

When a group of volunteers arrived at the festival site on Thursday to erect the tower in readiness for the event later this month they found a nest of blue tits in one of the tower legs.

GMB union official Gary Cook said he hoped the young birds would fly in the next few days so the tower could be put in place.

It has become a familiar site in the Left Field, where political debates are held as well as musical performances.

Spencer Barnshaw , from the Battersea and Wandsworth TUC which owns the tower, said: "We were surprised to hear today about this birds nest with the young blue tits.

"We hope some arrangements can be made so that erecting the 90 foot Left Field tower and beacon does not go tits up."

PA