Bear Ravine, Dudley Zoo, Dudley Castle, under construction, with Berthold Lubetkin overlooking from the terrace

NOTES: The semi-circular tropical birds' house stands above another drum of smaller diameter that houses the zoo's electricity transformer. In 1985 a thorough restoration was carried out by the Planning and Architecture Department of Dudley Metropolitan Borough - the beginning of a long term project to renovate many of the 15 listed Lubetkin buildings at Dudley. The restoration was carried out with Lubetkin's advice and approval.