John Drewett
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John Drewett Ecology Bat scoping survey report High Marriforth, Marriforth Lane, Rookwith, HG4 4BH November 2009 Castlerigg, Redmire, Leyburn, North Yorkshire, DL8 4EL [email protected] 01969 623065 Contents 1 Summary ....................................................................................... 3 2 Site location .................................................................................... 4 3 Development proposals .................................................................... 5 4 Methodology ................................................................................... 7 4.1 Desk study ................................................................................ 7 4.2 Field survey ............................................................................... 7 5 Desk study ..................................................................................... 8 6 Site description ............................................................................... 9 6.1 Buildings ................................................................................. 10 7 Assessment .................................................................................. 14 7.1 Constraints on survey information .............................................. 14 7.2 Summary of findings ................................................................. 14 7.3 Potential impacts of development in absence of mitigation ............. 14 7.4 Recommendations and mitigation ............................................... 15 8 Background information and references ............................................ 16 8.1 Bats: Legislation and policy guidance .......................................... 16 8.2 Brief summary of bat biology ..................................................... 17 8.3 References .............................................................................. 18 Method Statement: High Marriforth, Marriforth Lane, Rookwith, HG4 4BH .. 19 Record of report and revisions Date Details Issued by 24 November 2009 Original report John Drewett High Marriforth 2 1 Summary A bat scoping survey of buildings at High Marriforth, Rookwith was commissioned in November 2009 by Mr Philip Fairburn. The survey was required in connection with proposals to convert part of the buildings to form a farm workers’ dwelling. The survey was carried out to establish the following: Likelihood of particular buildings, structures, trees or other features to support bats Bat behaviour that may be affected by the proposed activity or development in terms of emergence, foraging, commuting or mating Opportunities for enhancement of bat habitat that may be possible with any given area The survey was carried out on 24 November 2009 by Surveyor Natural England Bat Licence No. or status John Drewett BSc. (Hons.), MIEEM 20091675 (Conservation & scientific) Four bat droppings were found inside the upper floor of the area to be converted. A further dropping was found in an adjoining building. The complex of buildings provides good scope for roosting bats, particularly in wall crevices and in roof areas. There is no definitive evidence of roosting within the areas to be converted, although there is potential in external walls. The proposed development is considered unlikely to have a significant impact on roosting bats. However, as there is potential for bats to roost undetected in certain crevices, the method statement attached must be followed in full and should be conditioned. If the development has not been commenced by May 2010 then the site should be re-surveyed for bats. High Marriforth 3 2 Site location Site name and address: High Marriforth, Marriforth Lane, Rookwith, HG4 4BH OS Grid Ref. SE198875 Altitude 135m Local Planning Authority Hambleton District Council Site location plan There are no statutory nature conservation sites at or adjacent to the survey site. High Marriforth 4 3 Development proposals The proposal is for the conversion of cart sheds, a hay loft and part of the granary building to form an agricultural workers cottage. Other buildings to be retained, although stores scheduled for use as workshop. Existing plan Proposed plan High Marriforth 5 Existing elevations Proposed elevations High Marriforth 6 4 Methodology 4.1 Desk study Information concerning designated sites was obtained from www.magic.gov.uk. Information regarding bats previously recorded at the site or within 2km was obtained from North Yorkshire Bat Group. 4.2 Field survey The following activities were carried out during this survey: An examination and assessment of the site and habitats present within 300m An examination of each building to record its main structural features and condition and to identify features that may be suitable for roosting bats The making of a photographic record of the site, its features and any evidence of bats to illustrate the findings in this report A detailed check of the interior and exterior of buildings to look for bat droppings; feeding remains such as moth & butterfly wings; live bats; dead bats; stains and marks on surfaces indicating regular use by bats All surveys utilise a digital camera, binoculars, torches and ladders as necessary. No additional equipment was used in conducting this survey. High Marriforth 7 5 Desk study The following records of bats previously recorded within 2km of the site were supplied by North Yorkshire Bat Group. Species Site Grid ref. Date Comment Daubenton's Jervaulx Abbey SE171857 08 Jun Bat 2003 Brown Long- Old Hall, Thornton SE1787 07 Jun eared Bat Steward 1985 Brown Long- Kilgram Grange SE192859 07 Mar Very extensive spread of eared Bat Farm, Kilgram Lane, 2002 droppings. At least 2 species - Jervaulx, Ripon long eared and ? Unknown Kilgram Grange SE192859 07 Mar Very extensive spread of Farm, Kilgram Lane, 2002 droppings. At least 2 species - Jervaulx, Ripon long eared and ? Brown Long- Ruswick Manor, SE195894 11 In flight eared Bat Newton-le-Willows May 2006 Common Ruswick Manor, SE195894 26 Apr Active very early in evening in Pipistrelle Newton-le-Willows 2006 large agricultural shed. Presumed roosting. Unknown Ruswick Manor, SE195894 26 Apr In flight. Possibly Newton-le-Willows 2006 Whiskered/Brandt's Soprano Ruswick Manor, SE195894 26 Apr Feeding around trees to west of Pipistrelle Newton-le-Willows 2006 buildings Daubenton's Squirrel Bank SE206850 13 Aug In flight. Bat 2006 Daubenton's Squirrel Bank SE206850 22 Aug In flight. Bat 2006 Daubenton's Squirrel Bank SE206850 11 Aug In flight Bat 2008 Daubenton's Squirrel Bank SE206850 21 Aug In flight Bat 2008 Pipistrelle Aysgarth School, SE208890 13 Feb Bats found hibernating under species Newton-le-Willows 2006 concrete floor Soprano Meadow View, SE212894 09 Aug Dead bat Pipistrelle Station Road, 2005 Newton le Willows High Marriforth 8 6 Site description The survey site is 6.5km to the west of Bedale. The surroundings are predominantly rural. The site is bordered on all sides by grassland, grazed by sheep. The nearest freshwater is a small lake approximately 750m to the north east. Thornton Steward Reservoir is 1.7km WNW and the River Ure is 1.5km to the south. The survey site is 300m from the nearest woodland which is predominantly broadleaved. The area is generally well supplied with small copses and woodlands. The site is in an area with little light pollution. The main features within the site boundaries are a range of existing farm buildings and grassland grazed by sheep. The buildings are located within a field. Most of the local fields are bordered by hedges, some incorporating hedgerow trees. The woods to the south and south-east of the site are visible from the buildings. Buildings in local landscape setting High Marriforth 9 6.1 Buildings Main surveyed buildings (red: cart shed / hay loft, blue: granary) Each building surveyed is described below and has been assigned to one of five categories according to its potential to support roosting bats: No bat roost potential. No bat droppings, feeding remains or other evidence of use by bats was found and there were no suitable crevices in which bats could roost. Low bat roost potential. No bat droppings, feeding remains or other evidence of use by bats was found, but crevices were present which could be suitable for occasional or casual use by bats, but the risk is considered to be low. Medium bat roost potential. A small number of droppings were scattered in the building, indicating that bats have at least flown there OR some crevices that are likely to be suitable for roosting bats were present, although these may not show signs of use (e.g. entrances covered by cobwebs. etc.). High bat roost potential. Signs of bats are present in the form of droppings, feeding remains, etc., but with no particular concentration. There are many crevices of a type likely to be attractive to roosting bats. Confirmed bat roost. Bats and/or concentrations of droppings found. 6.1.1 Cart Shed / Hay Loft (medium bat roost potential) The building is of stone construction with rubble filled walls and an unlined slate roof. The walls are reasonably well pointed externally and partially plastered internally, restricting the number of available cracks and crevices. There are some arrow slit crevices right through the wall at High Marriforth 10 intervals and a number of smaller crevices around the ends of beams. There are a number of small holes beneath ridge tiles and also a number of slightly raised slates. There are windows on the east side, but west side windows have been temporarily boarded over.