At the HDD operational sites constructing the crossings of the Deben Estuary and the Martlesham Creek onsite visual barriers will be erected around the works area.
At the Deben Estuary HDD crossing site all construction workers will be given strict instructions not to leave the HDD site and walk up on to the sea wall.
1.6 Mitigation at the Pre-construction Stage 1.6.1 Pre-construction Surveys
26. Pre-construction surveys will be targeted at Schedule 1 breeding species, rather than SPA non-breeding species, due to the need to assess the regularity of nesting at previously identified locations and the potential for such Schedule 1 species to choose new nesting locations.
27. Pre-construction surveys for Schedule 1 breeding species will be undertaken and have the aim of identifying and confirming areas where nesting is regular and mitigation by habitat management might be necessary. Wetland habitats along the cable route that are potential nesting habitats for Marsh Harrier and Cetti’s Warbler will be surveyed using appropriate methods. Survey methods will also be used that will identify the potential for nesting Hobby Falco subbuteo and Barn Owl Tyto alba (both Schedule 1 species that nest at low density in farmland) along and adjacent to the cable route. Survey methods will include an inspection of Barn Owl boxes (using a suitably licenced ornithologist if during the breeding season) within 100m of the route (no boxes are currently known to be used by this species).
28. The SPA non-breeding species have, in the case of Avocet and roosting Brent Goose, habitat requirements that mean their use of the area will not change from year to year and in the case of Brent Goose feeding areas their use of agricultural land will follow cropping practice that changes every year. As a result there is no benefit to be gained from pre-construction surveys for SPA non-breeding species (but note there will be surveys carried out for Brent Goose during the construction phase that will be overseen or delivered by the ECoW).
1.6.2 Targeted Habitat Management Brent Goose
29. No targeted habitat management is proposed for Brent Goose at the pre-construction phase as there is no reason or requirement to carry out any such works in advance of construction.
EcMP: Deben Estuary SPA & Schedule 1 Birds
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