Hen Harrier

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

Hen Harrier – winter 2019

Circus aeruginosus – BOD Y GWERNI – Winter visitor. The Hen Harrier is widely distributed across northern Eurasia. In Britain it breeds primarily over 450m on heather-covered uplands, including in north Wales. In most areas it is migratory, heading south for the winter, although in some areas (including the UK) the migrations may be short […]

Hen Harrier – 1994

Circus aeruginosus – BOD Y GWERNI – Winter visitor. Not recorded from June to August The breeding records noted by Mathew (1894) were discounted by Lockley et al. (1949) as probably referring to Montagu’s Harrier. Even in winter they were becoming scarcer by 1894. By 1949 the species was classified as a “regular but very scarce autumn and winter visitor” […]

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 […]

Hen Harrier – 1949

Species account from the Birds of Pembrokeshire, 1949, by Lockley, Ingram and Salmon.

Hen Harrier – 1894

Species account from the 1894 ‘Birds of Pembrokeshire and its Islands’ by Rev M A Mathew