Dataset Details - Bird Atlas 2007 - 2011
A survey of bird distribution, in summer and winter, over the four year period between 2007 and 2011.
The purpose of the survey was to map the distribution of all bird species, generate information on patterns of relative abundance, quantify distribution changes, inform conservation priorities, and engage a new generation of recorders.
Two fieldwork methods were used. As part of the Roving Records, bird record from every 10-km square were collected, which were used to describe the distribution range. The Timed Tetrad Visits (TTVs) method gathered records from tetrads (2 x 2-km squares) and were used to generate information on relative abundance of a species within a 10-km square. The data were used to produce the BTO/SOC/IWC Bird Atlas 2007-11 (Balmer, D., Gillings, S., Caffrey, B., Swann, B., Downie, I. & Fuller, R. Bird Atals 2007-11: The breeding and wintering birds of Britain & Ireland. BTO Books, Thetford).
The survey covered both Britain and Ireland, but only the Republic of Ireland subset of data are displayed.
Four winters and four summers from November 2007 to July 2011.
Hiqh quality. All data underwent rigourous data verification and validation.
Complete, except for records of some of Ireland's rarest birds.Sighting of red-necked phalarope, white-tailed eagle, golden eagle, black-tailed godwit, marsh harrier and little ringed plover during the breeding season, and golden eagle in winter, are not mapped in order to safeguard these species from possible disturbance.
Further information some of the key findings of the survey are presented on the BirdWatch Ireland website http://www.birdwatchireland.ie/OurWork/ResearchSurveys/Atlas/tabid/487/Default.aspx
Open (Creative Commons CC-BY 4.0)
BirdWatch Ireland, Bird Atlas 2007 - 2011, National Biodiversity Data Centre, Ireland, accessed 24 March 2018, <https://maps.biodiversityireland.ie/Dataset/220>
Dataset species distribution
Terrestrial Map - 10kmDistribution of the number of species recorded within each 10km grid square (ITM).
Marine Map - 50KmDistribution of the number of species recorded within each 50km grid square (WGS84).
Dataset record distribution
Terrestrial Map - 10kmDistribution of the number of records within each 10km grid square (ITM).
Marine Map - 50KmDistribution of the number of records within each 50km grid square (WGS84).
Records per year
Species per year
|SurveyId||Title||Data Capture Period||Species||Records|
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|Abundance||Measure of abundance of the organism recorded|
|Breeding evidence||Category of breeding evidence obtained based on observed behaviour|
|Season||The season during which the species was observed|
|Survey name||Name of survey if the record was made as part of a specific survey (including collections of casual observations and other loose assemblages of data)|
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