Scrub was cleared and a stretch of piling installed, allowing sedge, reed and rush to grow back.
By 2005 it was reported that more birds, including kingfishers, were nesting on the island and the rare Cetti's warbler was often spotted.
During the course of the work, in 2004, volunteers came across an unexploded Second World War hand grenade in the dredgings, which was exploded by an army bomb disposal team.
Alfred had inherited the 300 acre property about 1858 from his unmarried cousin, Elizabeth Foulsham (1774–1857).
There is a locomotive at the Bure Valley Railway in Norfolk which is named after Wroxham Broad.