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Winter Bird Atlas

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national winter maps   list of main 10-km squares

Winter Atlas Survey: 2007/8 to 2010/11
 
Update: national fieldwork now completed , but records from winters 2011/12 & 2012/13 will also be mapped for the Waterford Atlas project.
 

Fieldworkers in Co Waterford have contributed to this national survey (throughout Ireland and Britain) to map the distribution and relative abundance of wintering birds throughout these islands.  Although results of the national atlas will be presented at 10-km scale (10-km x 10-km squares), much of the fieldwork is done at a finer scale - collecting records within 2-km x 2-km tetrads.  Preliminary coverage & species maps are given below.  Latest update 10 December 2011.

 

Winter coverage update:  preliminary species totals

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Map above updated 5 March 2011 -  compare with 1981/82-83/84 summary map

 

Winter coverage update:  tetrads already allocated or covered

 

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Update @15/12/2010

The map above shows the tetrads for which volunteer counters have already 'signed up' for (or completed) Timed Tetrad Visits.  Ideally we need to cover at least 8 tetrads in each main square, or all substantial tetrads in any coastal squares that have fewer than 8 tetrads.  However, in this final season, priority is being given to tetrads in the squares marked * above (which are being covered fully on national scale).

 

As well as Timed Tetrad Visits, volunteers are also needed to collect Roving Records - either in specific tetrads (e.g. near home) or from any tetrads throughout the county.  This will help build up fuller species lists for each tetrad and 10-km square.  See Bird Atlas 2007-2011, or email, to sign up. 

See also other maps (allocation, coverage and results) for Co Waterford, from the national atlas website (some copied below also).

winter_species0709_04122009.gif
NB: results from winter 2009/2010 not added yet

Unlike the Waterford Breeding Bird Atlas (full details here), winter atlas coverage in Waterford will not be complete, i.e. only a sample of 2-km tetrads will be surveyed fully.  (The basic requirement is 8 or more tetrads per 10-km square, or fewer in some coastal squares.)  Full coverage of a tetrads involves the Timed Tetrad Visit (TTV) method, i.e. two 1-hour counts, one during November-December and one January-February.  However, less-intensive coverage of other tetrads, using the Roving Records (RR) method, will provide further information.  If the coverage achieved by a combination of these methods is good enough, it may be possible to produce detailed maps of winter bird distribution for selected Waterford species. 

August 2009 Britain & Ireland newsletter (added 12/08/2009 2.8 mB)

October 2008 national newsletter (0.9 mB)

March 2008 Atlas Newsletter (added 29/03/2008)

 

Sample species maps

 

Maps below are based on data for the first two winters of atlas coverage (2007/08 & 2008/09).  Updated 16 December 2009.

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waterford_winter_merlin_10032009.gif

black-tailedgodwit_winter0709_16122009.gif

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lbbg_winter0709_03122009.gif

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stonechat_winter0709_03122009.gif

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waterford_winter_0709_blackcap_10032009.gif

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bluti_winter0709_16122009.gif

chaffinch_winter0709_16122009.gif

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Species richness by 10-km square
 
The map below (from national atlas website) summarises coverage since 1/11/2007 as as % of the species totals recorded in the previous Winter Atlas (1981/82 to 1983/84).  Redover 90% of previous total;  orange = 75-90%yellow = 50-74%white = 1-50%
 
See also other 10-km summary maps for winters 1981/82-83/84 and 2007/08-08/09.
 
 Updated 12 Nov 2010.
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Species richness: Britain & Ireland
(online records @ 12/11/2010 from www.birdatlas.net)

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Timed tetrad coverage: B & I
(online records @ 12/11/2010 from www.birdatlas.net)

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