Sunday, October 9, 2011 at 6:47PM 
The BTO winter atlas showed that Pied Wagtails 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 19 birds seen in a day, as at roosts.
Graham Rees
Sunday, October 9, 2011 at 6:46PM 
The BTO winter atlas showed that Pheasants 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 9-33 birds seen in a day. Releases of birds reared for shooting varies year by year, so the map represents a snapshot limited to the winters in which the survey was conducted.
Graham Rees
Sunday, October 9, 2011 at 6:45PM 
The BTO winter atlas showed that Peregrines 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 3 birds and refers to birds in estuarine habitat.
Graham Rees
Sunday, October 9, 2011 at 6:43PM 
The BTO winter atlas showed that Oystercatchers were present in all 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 45-225 birds.
Graham Rees
Sunday, October 9, 2011 at 6:42PM 
The BTO winter atlas showed that single Mediterranean Gulls were noted in five Pembrokeshire 10km squares during the winters of 1981-82, 1982-82 and 1983-84.
Graham Rees
Sunday, October 9, 2011 at 6:41PM 
The BTO winter atlas showed that Mute Swans were present in suitable 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 24 birds seen in a day.
The distribution plot highlights the square that includes Pembroke Mill Ponds where the largest concentration in the county occurred.
Graham Rees
Sunday, October 9, 2011 at 6:36PM 
The BTO winter atlas showed that Marsh Tits 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 8 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
Sunday, October 9, 2011 at 6:34PM 
The BTO winter atlas showed that Long-tailed 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 16-28 birds.
Graham Rees
Sunday, October 9, 2011 at 6:11PM 
The BTO winter atlas showed that Goldfinches 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 26 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
Sunday, October 9, 2011 at 6:07PM 
The BTO winter atlas showed that Goldcrests 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 20 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
Sunday, October 9, 2011 at 5:52PM 
The BTO winter atlas showed that Little Auks were noted in three Pembrokeshire 10km squares during the winters of 1981-82, 1982-82 and 1983-84. These were single birds noted inshore following onshore gales.
Graham Rees
Sunday, October 9, 2011 at 5:51PM 
The BTO winter atlas showed that Linnets 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 99 birds.
Linnets can be difficult to find in wintertime because the majority can flock in small areas.
Graham Rees