The re-colonisation of Sussex by breeding Peregrines did not begin until 1990, since when , the numbers of breeding pairs have steadily increased.
By 1999, 7 of the former 14 ancestral coastal eyries were re-occupied.
Inland breeding territories have been established at 2 ancestral haunts where they were previously subjected to persecution, together with other inland sites which did not exist in former times.
The addition of an artificial site proposed in 1997
has proved successful. The nest box was placed on a block of flats in excess
of 100m high in the City of Brighton.
