Appendix 11.1: Ornithology Technical Appendix

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Revised Coire Glas Pumped Storage SchemeEIA ReportAppendix 11.1Ornithology – Technical AppendixAppendix 11.1: Ornithology – Technical Appendix11.1Introduction11.1.1A targeted ornithological field survey, concentrating on locally important and legallyprotected bird species, of the Revised Coire Glas Pumped Storage Scheme (The ProposedDevelopment) was undertaken by EnviroCentre Limited during the 2017 bird breedingseason. All surveyors were fully licensed to undertake their surveys/studies.11.1.2Care was taken to ensure that survey methods and the level and type of survey effort wasconsistent with SNH guidance available at the time surveys commenced. This reportprovides details of the surveys undertaken and a spreadsheet of the raw data collected.11.1.3Surveys in the same location were undertaken in 2010 to inform The ConsentedDevelopment.11.2Reconnaissance11.2.1Due to the previous fieldwork, no preliminary assessment was undertaken ahead of the2017 survey work.11.2.2The site consists of open heather moorland, mixed-species, mixed-age plantationwoodland, agricultural land and rough pasture, and areas of saturation and shorelinehabitat along the shores of the Caledonian Canal and Loch Lochy.11.2.3The geographical location and habitat types within the bird survey area identified thefollowing potential bird issues:11.2.4 Raptors – the open moorland environment with craggy rock faces and maturewoodland may provide suitable nesting and foraging opportunities for a varietyof protected raptor species and owls. In particular, Golden Eagle (Aquilachrysaetos), Hen Harrier (Circus cyaneus) and Merlin (Falco columbarius) whichappear on Annex 1 of the Birds Directive (The European Union, 2009) andSchedule 1 of the Wildlife and Countryside Act 1981 (UK Government, 1981). Breeding birds – the woodland, rough pasture and scrub habitats may providesuitable nesting sites for a variety of species which are covered within the UKBAP(JNCC, n.d.) or which appear on the list Birds of Conservation Concern (BoCC)(Eaton et al., 2015) - a traffic-light system which identifies the population trendsof breeding and overwintering birds in the UK. Species such as Cuckoo (Cuculuscanorus), Tree Pipit (Anthus trivialis), Spotted Flycatcher (Muscicapa striata) andWoodcock (Scolopax rusticola) were identified as potential Red-list BoCC specieswhich may be present on site.A subsequent desk-based review of the main (protected) bird sensitivities associated withthe wider area was conducted. This was used to identify a range of field surveyrequirements with the following aims: March 2018Determine the distribution and abundance of breeding birds; andPage 1

Appendix 11.1Ornithology – Technical Appendix Revised Coire Glas Pumped Storage SchemeEIA ReportIdentify if any protected species breed within the footprint of the ProposedDevelopment.11.3Field Surveyors11.3.1The ornithological surveyor was Mike Coleman, Lead Principal Ornithologist atEnviroCentre Limited, the same surveyor that had undertaken the previous field surveys onthe site in 2010.11.3.2The surveyor has extensive ornithological field experience of both lowland and uplandareas across Europe, has worked on many renewable energy projects over many years, andholds a Scottish Natural Heritage Schedule 1 Bird Licence (Number 66155).11.4Survey MethodsBreeding Bird Surveys11.4.1The Breeding Bird Survey used in the lowland areas and woodland areas of the ProposedDevelopment refers to a modified version of the British Trust for Ornithology (BTO)Breeding Bird Survey (BBS) (BTO, 1994) and Common Bird Census (CBC) (Marchant, 1983).This survey is undertaken as the standard survey in lowland areas, and areas of mixedhabitat away from upland moors. Fieldwork involves three visits to the site between Apriland July. These visits are made in the early morning (to coincide with the peak of birdactivity) about four weeks apart, ensuring that late-arriving migrants are recorded. A routethrough the survey area is walked at a constant steady pace and reaches within 50 metresof every point. Windy and rainy conditions are avoided where possible. All bird species arerecorded, as is any relevant behaviour (gathering nesting material, territorial calling,fighting, feeding young, etc), which is then transferred to a 1:25000 scale map, from whichbreeding numbers or pairs/territories can be ascertained.11.4.2Due to areas of the site being under private ownership, and areas of woodland with limitedaccessibility, not every point was observed from within 50 metres, and some of the surveyswere undertaken in rainy conditions. However, a similar accumulation of species wasrecorded on each visit, and therefore the validity of the survey data is not thought to havebeen compromised during any of the surveys.Moorland Breeding Birds11.4.3The modified Brown and Shepherd (1993) Moorland Breeding Bird survey is the standardsurvey technique for moorland/upland breeding birds and is described in the SNH guidance(SNH, 2005 & 2009). The Brown and Shepherd methodology is based on a constant searchmethod involving spending 25 minutes in each 500mx500m quadrat, within the surveyarea and 500m buffer. This equates to spending 100 minutes for every km 2. Each quadrantwas walked to ensure that all parts were approached to within 100m. At regular intervals,the surveyor paused, scanned the area for species and listened out for calls and songs. Allregistrations were marked on a 1:25,000 scale map using BTO symbols with a note of thespecies activity.11.4.4This method is specifically designed to survey upland wader species, e.g. Golden Plover andDunlin. However, SNH allows this method to be used to record passerine species if thesurvey is extended to include the period between dawn and 0900. It should also be notedthat there are potential limitations to this survey method. For example, SNH recommendsPage 2March 2018

Revised Coire Glas Pumped Storage SchemeEIA ReportAppendix 11.1Ornithology – Technical Appendixthat this survey should not be used to assess the collision risk of raptors or waterfowl,which are more suited to being surveyed using other methods, such as vantage pointwatches; however the methodology can be useful in adding to territory distribution datafor these species and in locating breeding sites.11.4.5Due to the paucity of birds present in the open moorland areas of the ProposedDevelopment, the time spent undertaking Brown & Shepherd surveys during the June andJuly surveys was reduced to concentrate on breeding raptor surveys. The records arecomparable to the 2010 survey results in the same area, and the reduction in time is notconsidered to have caused any constraint to the validity of the data.Breeding Raptor Surveys11.4.6Breeding raptor surveys were conducted as part of the Moorland Breeding Bird Surveysand Breeding Bird Surveys, with priority being given to detecting species listed on Annex 1of the Birds Directive or Schedule 1 of the Wildlife and Countryside Act 1981.11.4.7Some of these species are considered to be particularly sensitive to disturbance, so surveywork was carried out in order to avoid preventable disturbance using specific surveymethods for each relevant species from Hardey et al. (2009).11.4.8SNH provides clear guidance in relation to raptor sensitivities and survey effort concerningonshore wind farms (SNH, 2005 & 2009). However, on this occasion, no surveys beyond theDevelopment area survey boundary were undertaken to determine the location ofbreeding raptors.11.4.9Additional time was spent undertaking breeding raptor surveys within the survey areaduring the survey period.Study Area11.4.10 The ornithological study area was located in the southern part of Glengarry Forest andcomprised of Coire Glas, Loch a’ Choire Ghlais, Allt a’ Choire Ghlais, open moorland to theeast of Ben Tee, the South Laggan Forest, and land along the length of the public roadextending between North Laggan and Kilfinnan. The study included birds of the moorlandaround the proposed dam and upper reservoir, surge shaft, ventilation shaft and accesstracks, and the birds in the forested and agricultural areas adjacent to access roads andtracks to the lower reservoir works area, site establishment areas and other structuresassociated with The Proposed Development.11.4.11 The study area is illustrated in Figure 1.11.5Fieldwork Dates11.5.1A programme of bird surveys were undertaken in order to identify those birds likely to beaffected by The Proposed Development and thereby inform the impact assessmentprocess. The bird surveys were undertaken on May 11th and 12th, June 12th and 13th, andJuly 27th and 28th 2017.11.5.2A summary table of all fieldwork dates and survey conditions during ornithological surveysfor the Proposed Development is provided below (Table 1).March 2018Page 3

09001800TIME FINISHBBSBBS / B&SBBSBBS / B&SBBSBBS / B&SSURVEY TYPE 35350-42-4WIND SPEED*SSSWSWWSWSSWWIND DIRECTION**78 48834CLOUD COVER#800900 2000200720 2000 1250 CLOUD BASE##X2 01GOOD/EXCELLENT2 (drizzle)3 LENTVISIBILITYSOFTSATURATEDWETSATURATEDHARD / DRYDRY CRUST MCMCMCMCMCMCSURVEYORon oktas; ##Cloud Base is metres above sea level; ***Precipitation Scale is 0 none, 1 light showers, 2 persistent rain/heavy showers, 3 heavy rain; XVisibility scale is EXCELLENT 5km ,GOOD 2-5km,POOR 1-2km, ZERO 1km; XX GroundCondition scale is Saturated-Wet-Soft-Dry-Hard; XXX Temperature is degrees Celsius; ###Surveyor, MC Mike Coleman.LEGEND: Survey BBS breeding bird survey/raptor search, b&s moorland breeding bird survey/raptor search; *Wind Speed is based on the Beaufort Scale; **Wind Direction based on a 16 point compass direction; #Cloud Cover is basedTIME STARTTable 1: Revised Coire Glas Pumped Storage Scheme Ornithology: Dates, Times and Conditions of SurveysDATEPage 4###

Revised Coire Glas Pumped Storage SchemeEIA Report11.6Appendix 11.1Ornithology – Technical AppendixReferencesBrown, A.F. & Shepherd, K.B. (1993). A method for censusing upland breeding waders. BirdStudy. 40, 189 – 195.BTO (1994). Breeding Bird Survey. Available at: conservation/methodology (Accessed May 2017)Eaton, M.A., Aebischer, N.J., Brown, A.F., Hearn, R.D., Lock, L., Musgrove, A.J., Noble, D.G.,Stroud, D.A. & Gregory, R.D. (2015). Birds of Conservation Concern 4: the population statusof birds in the United Kingdom, Channel Islands and Isle of Man. British Birds 108, 708–746.Hardey, J., Crick, H., Wernham, C., Riley, H., Etheridge, B. & Thompson, D. (2013). Raptors:a field guide to survey and monitoring (3rd Edition). The Stationery Office, Edinburgh.JNCC (n.d.). UK Biodiversity Action Plan. Available at: http://jncc.defra.gov.uk/page-5155(Accessed April 2017)Marchant, J. (1983). BTO Common Birds Census instructions. British Trust for Ornithology,Tring.SNH (2005). Survey Methods for use in Assessment of the Impacts of Proposed OnshoreWind Farms on Bird Communities. Scottish Natural Heritage, Battleby, Perth.SNH (2009). Guidance Note: Guidance on Methods for Monitoring Bird Populations atOnshore Wind Farms. Scottish Natural Heritage, Battleby, Perth.The European Union (2009). Birds Directive uri CELEX:32009L0147&from ENUK Government (1981). Wildlife & Countryside Act (WCA) 1981 Schedule 1. Available s/ukpga 19810069 en.pdfMarch 2018Page 5

220000225000230000Legend800000800000Bird Survey AreaDo not scale this mapClientASH Design AssessmentProject795000795000Revised Coire Glas Pumped Storage SchemeTitleBird Survey AreaAppendix 11.1 - Ornithology Technical AppendixStatusDrawing No.FINAL169281-004Scale1:40,000DrawnGVSource: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and theGIS User 5 Jan 2018ApprovedMCCraighall BusinessPark, Eagle Street,Glasgow, G4 9XATel: 0141 341 5040Fax: 0141 341 5045

EIA Report Ornithology – Technical Appendix March 2018 Page 1 Appendix 11.1: Ornithology – Technical Appendix 11.1 Introduction 11.1.1 A targeted ornithological field survey, concentrating on locally important and legally protected bird species, of the Revised Coire Glas Pumped Storage Scheme (The Proposed

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