Razorbill

Alca torda – LLURS – Breeding resident and passage migrant

Razorbill – 2003-07 breeding

Alca torda – LLURS – Breeding resident and passage migrant Comparison with previous atlas: 1984-88 2003-07 Breeding confirmed 24 27 Breeding probable 1 Breeding possible excluded from total No of tetrads occupied 24 (of 478) 28 (of 490) Percentage of tetrads 5% 5.7% Razorbills nest mostly in loose colonies scattered around broken cliffs in cracks […]

Razorbill – 1994

Alca torda – LLURS – Breeding resident and passage migrant 1984-88 Breeding confirmed 24 Breeding probable Breeding possible No of tetrads occupied 24 (of 478) Percentage of tetrads 5% Breeding distribution seems to have changed little since the time of Mathew (1894). Assessing numbers, though, is even more problematical than for Guillemot, for a large […]

Razorbill – 1980s winter

Alca torda – LLURS – Breeding resident and passage migrant The BTO winter atlas showed that Razorbills were present in some coastal 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 17 birds. Small numbers were found […]

Razorbill – 1949

Alca torda britannica Mathew describes it as a common summer resident, but less numerous than Guillemot or Puffin, and mentions the following breeding stations: Caldey, St Margaret’s, Skokholm, Skomer, Grassholm, Ramsey and various mainland cliffs.  Breeds today in suitable sites from Cemmaes Head to Caldey.  Decreased during the recent war, probably because of oil-pollution. R.M.Lockley, […]

Razorbill – 1894

Alca torda – Resident. The great multitude of cliff birds to be seen in the summer months on the various islands off the Pembrokeshire coast, is one of the unique features in the Ornis of the county. No one who has once visited in May or June the beautiful islands of Skomer or Ramsey, will ever forget the spectacle that […]