Tricorn House has been abandoned for two decades, but recently it has become home to thousands of starlings.
Swooping overhead in perfect formation, the most incredible wildlife phenomena takes place at dusk and early evening with the flocks swooping down in almost military like precision to disappear into the ivy clad wall of the former council owned building.
Starling numbers have declined by more than 80 per cent in the last 50 years, causing this species to be red listed as a bird of high conservation concern.
It is likely that this population decline is due to the shortage of food and nesting sites that comes with increased urban development and the reduction of outbuildings and open eaves on houses.
Video by Matt Bigwood, pictures by Hannah Bigwood
