APEM Ltd – EAOW Wintering Bird Surveys: Final Report 411732


2 METHODS 2.1


Survey Methodology


For consistency with WeBS surveys, counts were made at both low and high tides. The surveys were carried out within two hours either side of low and high tides as shown in Appendix III.


Surveys were conducted from vantage points with a wide view, allowing the observer to count the entire sector (or most of it) while remaining relatively concealed from feeding and roosting birds. In line with WeBS methods, counts were performed using binoculars (10 x 42) and a high powered (25-50x) telescope. The survey area was divided into the same count sectors as those previously surveyed by WeBS to assist with the collection, synthesis and interpretation of results and the sectors were counted sequentially (Figure 1.1). Each sector was surveyed within a maximum four hour period of two hours either side of high or low tide (depending on whether the survey was a core count or low tide count) to ensure minimum movement of birds both within and between sectors. This minimised the probability of double-counting individual birds and provided a “snap-shot” of bird abundance and distribution within the study site.


3.2 Weather Conditions A breakdown of the weather conditions on each survey can be seen in Table 2.1 below.


7


October 2012 – Final


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