This map shows the changes which occurred in the winter relative abundance of the species between 1995-2000 and 2007-2012, but only in the limited selection of tetrads that were surveyed in winter for Birds of Wiltshire (Wiltshire Ornithological Society 2007).
Relative to average
Nos tetrads
More abundant
0
0%
Equally abundant
0
0%
Less abundant
0
0%
Not surveyed in both periods