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Thames swan counters hope numbers recover after avian flu
BBC News
The annual royal census of swans on the River Thames hopes for a recovery after last year's avian flu.
The River Thames, known alternatively in parts as the River Isis, is a river that flows through southern England including London. At 215 miles (346 km), it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn.
The annual royal census of swans on the River Thames hopes for a recovery after last year's avian flu.