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  3. Twite Breeding Season Survey, Wales 2008

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Twite Breeding Season Survey, Wales 2008

Royal Society for the Protection of Birds

Description

This survey updated a survey undertaken in 2002 by Snowdonia National Park and the National Trust. In Wales, twite are restricted primarily to northern Snowdonia around the valley of Nant Ffrancon and Llyn Ogwen, bounded by the Carneddau to the north and east, by Elidir Fawr and Y Garn to the west and by the Glyder range to the south, where breeding has been recorded since 1944 (Lovegrove et al. 1994), with post breeding flocks of over 150 birds in the recent past (1999 - 2000). This dataset also contains records other species in addition to twite which were recorded during the survey.

Geographic Description

North Wales

Purpose

This survey updated a survey undertaken in 2002 by Snowdonia National Park and the National Trust to assess current status and provide reliable indication of trend in range and abundance between the reference years (2002 - 2008).

Data quality

These data have been gathered by trained field-workers and the data are of a high quality. These data have been mapped and checked for sensitivities and typographical/geographical errors.

Methods

This survey follows the same method used for the 1999 Statutory Conservation Agencies/RSPB Annual Breeding Bird Scheme (SCARABBS) and is based on Gilbert et al (1998). Bird Monitoring Methods. RSPB. Sandy, Bedfordshire.

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Three visits were made each to selected 1km squares in two strata 1) stratified random sample of 1km squares; 2) squares identified with historic records. Survey staff walked modified point transects at 200m intervals. Whilst recording was continuous at 100m intervals within suitable breeding habitat, observers made five-minute stops to scan and listen for twite (observers were advised to avoid steeply sloping land). Habitat cover was recorded to the nearest 10%. Supplementary records were also collated.

Citation

No citation information available.

Rights

CC-BY

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Date created: 2017-03-30
Metadata updated: 2017-06-16

Citations

DOI https://doi.org/10.15468/u5yj87    12 citations for these data

Licence

Creative Commons with Attribution 4.0 4.0 Creative Commons with Attribution 4.0 4.0

Temporal scope

2008-05-06 - 2008-07-08

Location

The Lodge
Potton Road, Sandy
Bedfordshire SG19 2DL

dataunit@rspb.org.uk

Contact

Conservation Data Management Unit
email this contact

Web site

Visit the data resource's website

NBN Atlas Partnership

National Biodiversity NetworkAtlas of Living AustraliaNatural EnglandNatural Resources WalesScottish Environment Protection AgencyWelsh GovernmentScottish Natural HeritageNorthern Ireland Environment Agency
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