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.

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.  

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

Parus caruleus A common resident, to be seen in our shrubberies every day in the year. In severe weather these little birds seek shelter, coming boldly into our house or into the greenhouses. In the latter they did good service in hunting out spiders and aphides. Mathew M.A. 1894, Birds of Pembrokeshire and its Islands More about the Blue […]