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APEM Ltd – EAOW Wintering Bird Surveys: Final Report 411732
were present in relatively high numbers in Sectors 1 and 9 with no individuals recorded in Sector 5. However, in contrast to the 2011/12 surveys, avocets were recorded in high numbers during December in Sector 1, with a mean peak of 209 individuals (Figure 4.6).
The most frequent high tide roosting location used by the majority of birds was south of Ramsholt Quay on the east side of the Deben in Sector 1, with smaller numbers in Falkenham Creek on the west side of the estuary, which are highlighted in Figure 4.7 as primary roosting locations. However, during strong westerly winds they also roosted in Kirton Creek (secondary roost site, Figure 4.7). However, the roosting flock was also observed to split between both the primary and secondary roost sites on one occasion.
Figure 4.5 Annual peak counts of avocet at each core count sector (recorded by WeBS during winters 2005/06 to 2009/10 and by APEM during winter 2011/12)
Sector 1
Sector 9
Figure 4.6 WeBS five-year monthly mean counts of avocet ((2005/06-2009/10) and winter 2011/12 monthly counts (at each core count sector))