Hen Harrier – 1980s winter

Circus aeruginosus – BOD Y GWERNI – Winter visitor. Not recorded from June to August

The BTO winter atlas showed that Hen Harriers were present in a third of Pembrokeshire 10km squares during the winters of 1981-82, 1982-82 and 1983-84.

The darker the colour, the higher the relative total count for each 10km square.  The darkest blue represents over 3 birds recorded per day.

Graham Rees. Pembrokeshire County Bird Recorder 1981-2007

Data collected by volunteers for the BTO. Lack, P. 1986 Atlas of wintering birds in Britain and Ireland. T & A.D. Poyser.

More about the Hen Harrier in Pembrokeshire