Rook

Corvus frugilegus – YDFRABreeding resident

Rook – 2013-14 rookeries survey

Corvus frugilegus – YDFRA – Breeding resident In 2011/12 it was commented on by several observers that some rookeries had either disappeared, or declined considerably in parts of Pembrokeshire.  In 2013 and 2014 birdwatchers were asked to count the nests in any rookeries they came across in the county.  No attempt was made to find […]

Rook – 2003-07 breeding

Corvus frugilegus – YDFRA – Breeding resident Comparison with previous atlas: 1984-88 2003-07 Breeding confirmed 220 211 Breeding probable 3 3 Breeding possible excluded from total excluded from total No of tetrads occupied 223 (of 478) 214 (of 490) Percentage of tetrads 46.7% 43.7% The Rook looks similar to a Carrion Crow but has a […]

Rook – 1994

Corvus frugilegus – YDFRA – Breeding resident 1984-88 Breeding confirmed 220 Breeding probable 3 Breeding possible excluded from total No of tetrads occupied 223 (of 478) Percentage of tetrads 46.7% Resident and abundant in all districts according to Mathew (1894), who noted that thousands perished in the severe winter of 1880. Lockley et al. (1949) also knew […]

Rook – 1980s winter

Corvus frugilegus – YDFRA – Breeding resident The BTO winter atlas showed that Rooks were present in most 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 800 birds seen in a day. Use of treeless coastal […]

Rook – 1949

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

Rook – 1894

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