Oystercatcher

Haematopus ostralegus – PIODEN Y MOR – Breeding resident and passage migrant

Oystercatcher – 2003-07 breeding

Haematopus ostralegus – PIODEN Y MOR – Breeding resident and passage migrant Comparison with previous atlas: 1984-88 2003-07 Breeding confirmed 50 25 Breeding probable 14 25 Breeding possible 23 26 No of tetrads occupied 87 (of 478) 76 (of 490) Percentage of tetrads 18.2% 15.5% In Pembrokeshire oystercatchers are largely restricted to the coast, breeding […]

Oystercatcher – 1994

Haematopus ostralegus – PIODEN Y MOR – Breeding resident and passage migrant 1984-88 Breeding confirmed 50 Breeding probable 14 Breeding possible 23 No of tetrads occupied 87 (of 478) Percentage of tetrads 18.2% Mathew (1894) mentions breeding at only three coastal sites, the “Bishop Rock”, Skomer and “on an island at the entrance to Milford […]

Oystercatcher – 1980s winter

Haematopus ostralegus – PIODEN Y MOR – Breeding resident and passage migrant The BTO winter atlas showed that Oystercatchers were present in all coastal and estuarine 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 45-225 birds. More […]

Oystercatcher – 1894

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