![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDQY0UVc7tyyMNDttdysHZNvnw013d_iaG0jsSjFYji8mx8Svsp7mci7HbyW8Y6r18lLHxXL5f36uTCGrtiRsveATMtP3r1zIfxKoX_w7MdTLAWP5a7iEmbT1MK43jsl1chXWG/s400/winter+atlas+density.jpg)
The map gives an indication of the number of species recorded so far in each tetrad.
Green patches - no records yet
Grey squares are less than seven species and probably mostly represent birds recorded while someone is driving through a square.
Darkest red squares have between 35 and 70 species recorded - the result of timed tetrad visits, and people recording in the tetrads where they live or visit most often.
We have records from 358 tetrads
152 species were recorded
A minimum of 225,573 individual birds were recorded (where no count was entered, the number is assumed to be one - so really there were lots more)
At least 59 people contributed - not all from Pembrokeshire, and indeed one person has an address in Finland.
Lots more effort is needed, especially in the middle and north-east of the county, so please do contribute in the coming season - fieldwork starts again on November 1st.