The first documented breeding record was in 1930 (Pennington et al. 2004). In
the late 1950s – early 1960s up to 12 pairs were recorded breeding (Pennington
et al. 2004).
A few
males have been seen holding territory in some years, although breeding has not
always been confirmed.
There
is, as expected, a marked increase in numbers in spring and autumn during
passage. Usually single into early double figures in the March and April, with
numbers occasionally reaching three figures in October and November.
The highest
spring count was 53, on