Golden Plover - 1980s winter

The BTO winter atlas showed that Golden Plovers were present in both estuarine and agricultural 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 496 birds.

Day roosting birds made up high numbers at the Cleddau Estuary, whereas those on the Castle Martin ranges were active feeders.  

Graham Rees 

Grey Plover - 1980s winter

The BTO winter atlas showed that Grey Plovers were present in 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 7-65 birds, up to 65 being noted at the Furzenips.

Graham Rees 

House Martin - 1980s winter

Gannet - 1980s winter

The BTO winter atlas showed that Gannets were present in a few coastal 10km squares during the winters of 1981-82, 1982-82 and 1983-84.

The coloured 10km squares represent 1-3 birds seen in a day.

Graham Rees

Guillemot - 1980s winter

The BTO winter atlas showed that Guillemots 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 21 birds.

Small numbers were found feeding in coastal waters but many more during their occasional winter time visits to breeding locations.

Graham Rees 

Great Tit - 1980s winter

The BTO winter atlas showed that Great Tits were recorded 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 38 birds recorded per day.

Graham Rees 

Great Spotted Woodpecker - 1980s winter

The BTO winter atlas showed that Great Spotted Woodpeckers were present in most 10km squares of their known breeding range 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 2-3 birds.

Graham Rees 

Grey Heron - 1980s winter atlas

The BTO winter atlas showed that Grey Herons were present in most 10km squares of their known breeding range during the winters of 1981-82, 1982-82 and 1983-84, being equally at home by fresh and salt waters.

The darker the colour, the higher the relative total count for each 10km square.  The darkest blue represents over 7 birds.

Graham Rees 

1980s BTO Winter Atlas

The Winter Atlas maps 200 species occurring in Britain and Ireland in winter.  The maps are derived from surveys of birds present in Britain and Ireland during the three winters, 1981/82, 1982/83 and 1983/84.  The surveys were organised by the British Trust for Ornithology and the Irish Wildbird Counsevancy, as were the earlier breeding birds surveys.

The maps reproduced here for species occurring in Pembrokeshire use the same "assessment of relative abundance" as the original maps, but are shown as light, mid and dark blue instead of different sized dots.  For example, a map with light blue squares only indicates that the species is more abundant elsewhere in Britain. All maps presented for this survey are at 10-km square (Hectad resolution). A maximum of 32 10-km squares cover the Vice County. This includes partial ones along boundaries with neighbouring counties Carmarthenshire and Ceredigion and along the coast.

Detail of the methodology, and the results for the whole country, are to be found in: Lack, P.C. (1986) The atlas of wintering birds in Britain and Ireland. T. & A.D. Poyser and national maps for individual species can also be accessed from the drop-down list at the bottom of the BTO Atlas page.

All the Pembrokeshire maps can be accessed by clicking here or on the "1980s BTO winter atlas" tag below. 

Yellowhammer - 1980s winter

The BTO winter atlas showed that Yellowhammers were present in the majority of 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 75 birds seen in a day.

Flocks found at a good seed source provided the largest numbers. 

Graham Rees

Wren - 1980s winter

The BTO winter atlas showed that Wrens were present in the majority of 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 25 birds seen in a day.

Graham Rees 

Woodpigeon - 1980s winter

The BTO winter atlas showed that Woodpigeons were present in the majority of 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 246 birds seen in a day. 

Graham Rees