By Michael J. Seago Walking the ancient driftway through Halvergate marshes, we paused by High's derelict drainage mill to watch the aerial manoeuvres of a mixed flight of golden plovers and lapwing. Alongside the nearby Fleet dyke brick foundations could be discerned around a prolific growth of nettles all that remained of a marsh homestead. Last occupants of the house before demolition were short-eared owls. These marsh owls arrive on Halvergate and Breydon levels each winter, but usually in very small numbers. However, on occasions exceptional totals have appeared.
Prey is largely small mammals, particularly short-tailed field voles.
It is remarkable that far across the North Sea these birds were aware of a vole 'plague' on the East Coast marshes. Sadly, at least two were found shot. Six years later impressive numbers of short-eared owls again descended on the marshes extending inland from Breydon Water. A total of 60 birds occupied roosts at Wickhampton, Havlergate and Haddiscoe Island. This spectacular total provided the unique sight of over 80 owls in the air at the same time.