sentences:  An image of the great bustard ("Otis tarda") stands at the centre of the flag.This bird had been extinct in England since 1832, but is now part of an intensive ten-year breeding programme on Salisbury Plain.Salisbury Plain, at the heart of the county, is one of only two areas in Great Britain in which the great bustard originally lived, the other being the sandy brecklands of eastern England (Norfolk and Suffolk).