Blue Tit – 2003-07

Cyanistes ceruleus – TITW TOMAS LAS – Breeding resident

Comparison with previous atlas:

1984-882003-07
Breeding confirmed302311
Breeding probable5495
Breeding possible5223
No of tetrads occupied408 (of 478)429 (of 490)
Percentage of tetrads85.4%87.6%

It was estimated that 24,000 pairs were nesting in Pembrokeshire at the end of the 1984-88 survey, based on a mean value of 60 pairs per occupied tetrad. This was a similar level to that of the 1988-91 National Atlas, using the calculated national average and relative abundance distribution.  

Little distributional change was apparent by the conclusion of the 2003-07 survey but the BBS indicated there had been an increase of 29% in Wales between 1994 and 2007. Accepting that a similar increase took place in the county, the population at the end of 2007 was probably about 31,000 pairs. Widespread garden feeding resulting in increased winter survival was undoubtedly a contributing factor to increased breeding numbers.

Graham Rees. Pembrokeshire County Bird Recorder 1981-2007

Records extracted from the Pembrokeshire Bird Reports, which may contain more detail than shown here.

More about the Blue Tit in Pembrokeshire

Blue Tit – 1994

Parus ceruleus – TITW TOMAS LAS – Breeding resident

Map produced by the West Wales Biodiversity Information Centre
1984-88
Breeding confirmed302
Breeding probable54
Breeding possible52
No of tetrads occupied408 (of 478)
Percentage of tetrads85.4%

Blue Tits have been common since Mathew’s (1894) time. They breed in a variety of habitats, including urban areas where they utilise holes in masonry and nest-boxes, and are only absent from the tops of the Preseli Mountains and all of the offshore islands save well-wooded Caldey. Census data from the Dyfed Wildlife Trust reserves of Rosemoor, Old Mill Grounds and Pengelli Forest, suggest an average of 60 pairs per tetrad which would amount to a county total of about 24,000 pairs.

They are eruptive in some autumns, like Coal Tits, and flocks are seen wandering q about the open coast, some reaching the offshore islands, with up to 50 at Skokholm in October 1957 and 1964 and 85 at Skomer in October 1991.

Donovan J.W. & Rees G.H, 1994, Birds of Pembrokeshire

More about the Blue Tit in Pembrokeshire

Blue Tit – 1980s winter

Parus ceruleus – TITW TOMAS LAS – Breeding resident

The BTO winter atlas showed that Blue Tits 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 70 birds.  

However, it should be noted that the figures show a high correlation with the number of recording cards returned (therefore related to recording effort) for each 10km square.  

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 Blue Tit in Pembrokeshire

Blue Tit

Parus ceruleus – TITW TOMAS LAS – Breeding resident

Blue Tit – 2003-07

Cyanistes ceruleus – TITW TOMAS LAS – Breeding resident Comparison with previous atlas: 1984-88 2003-07 Breeding confirmed 302 311 Breeding probable 54 95 Breeding possible 52 23 No of tetrads occupied 408 (of 478) 429 (of 490) Percentage of tetrads 85.4% 87.6% It was estimated that 24,000 pairs were nesting in Pembrokeshire at the end […]

Blue Tit – 1994

Parus ceruleus – TITW TOMAS LAS – Breeding resident 1984-88 Breeding confirmed 302 Breeding probable 54 Breeding possible 52 No of tetrads occupied 408 (of 478) Percentage of tetrads 85.4% Blue Tits have been common since Mathew’s (1894) time. They breed in a variety of habitats, including urban areas where they utilise holes in masonry […]

Blue Tit – 1980s winter

Parus ceruleus – TITW TOMAS LAS – Breeding resident The BTO winter atlas showed that Blue Tits 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 70 birds.   However, it should be noted […]

Blue Tit – 1894

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