Last Updated 17/05/2009
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Surveys |
BTO Survey Questionnaire
This form (click here) was sent to all Dorset BTO Members. Would any Members who have not returned the form, please do so. If there are any non BTO Members, who would be interested in taking part in bird surveys, please complete the form and return it to me.
Bird Atlas 2007-11
Note: a tetrad requires two visits in the winter and two visits in the breeding season and is then COMPLETE - it should not be covered in all four years.
Well, we have started and there have been quite a number of Tetrads requested for Timed Tetrad Visits (TTV's). The plan is to do a minimum of 8 TTV's per 10 Km square in the Region. In the grid below I have listed the number of Tetrads that are needed to be covered to reach the BTO minimum of 8. See http://blx1.bto.org/atlas-results/allocdors.html for the latest live results.
Timed Tetrad Visits to Cover
In the top Grid below the first figure shows how many tetrads are still to be allocated - the second figure shows how many are available for TTV's - highlighting indicated that the BTO requirement 8 TTV's per 10K has been achieved.
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Tetrads in 10 Km Squares still to Cover
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ST
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ST40 5/25
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ST50 5/25 |
ST60 5/25
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ST61 0 |
ST70 0
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ST71 0
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ST72 0
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ST80 1/25 |
ST81 0 |
ST82 1/25 |
ST90 0 |
ST91 0 |
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SU
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SU00 0
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SU01 0
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SY |
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SY39 0 |
SY48 1/1 |
SY49 0 |
SY58 3/12 |
SY59 2/25 |
SY66 0 |
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SY67 0 |
SY68 0 |
SY69 0
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SY77 0 |
SY78 0 |
SY79 2/25 |
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SY87 0 |
SY88 0 |
SY89 0 |
SY97 2/8 |
SY98 0 |
SY99 0 |
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SZ |
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SZ07 2/4 |
SZ08 1/8 |
SZ09 0 |
SZ19 0 |
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Tetrads In
Survey/Allocated
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ST
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ST40
2/3
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ST50 1/3 |
ST60 3/3
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ST61 6/9 |
ST70 5/8
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ST71
12/15
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ST72 7/8
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ST80 7/7 |
ST81 5/9 |
ST82 5/7 |
ST90 12/15 |
ST91 1/8 |
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SU
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SU00
12/14
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SU01
10/15
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SY |
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SY39 3/8 |
SY48 0/0 |
SY49 3/8 |
SY58 3/5 |
SY59 4/6 |
SY66 0/0 |
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SY67 8/8 |
SY68 11/17 |
SY69 8/9
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SY77 0/0 |
SY78 10/11 |
SY79 6/6 |
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SY87 0/0 |
SY88 5/24 |
SY89 4/14 |
SY97 4/6 |
SY98 13/19 |
SY99 1/25 |
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SZ |
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SZ07 2/2 |
SZ08 3/7 |
SZ09 5/12 |
SZ19 12/15 |
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In the bottom Grid above the first figure shows how many tetrads have been surveyed at least once - the second figure shows how many in the 10K are allocated - highlighting indicated that the BTO requirement of 2 Winter & 2 Breeding for 8 TTV's has been achieved.
Tetrad Count
1st Year
111 early and 103 late Winter TTV's 92 early and 75 late Breeding TTV's
2nd Year
69 early and 61 late Winter TTV's 26 early and 0 late Breeding TTV's
Roving Records and Bird Track
367 Winter and 320 Breeding RR's (212 both seasons)
The Atlas Survey
Bird Atlas 2007-11 aims to produce maps of distribution and relative abundance for all bird species breeding and wintering in Britain and Ireland. Atlases have been immensely important for furthering bird knowledge and conservation and Bird Atlas 2007-11 is destined to set the agenda for the next decades of ornithology in Britain and Ireland.
Getting involved
Fieldwork will span four winters and four breeding seasons, starting on 1 November 2007, during which we will cumulatively survey the whole of Britain and Ireland. To fulfil these objectives there are two core methods:
Roving Records - whatever you see, whenever, wherever!
For distribution maps to be comprehensive we need complete species lists for every 10-km square in Britain and Ireland for the breeding season and winter. Roving Records are a means of submitting lists for grid squares, one-off records of hard to find species, and anything in between. They are also a means of accumulating evidence of breeding and for providing records of nocturnal species. Everyone can take part by supplying Roving Records.
Timed Tetrad Visits
Timed Tetrad Visits (TTVs) are principally concerned with discovering the broad patterns of relative abundance across Britain and Ireland by counting birds for fixed periods in tetrads. Tetrads are 2km x 2km squares and labelled A to Z within each 10-km square (25 tetrads, NO 'O'). TTVs do not aim to produce a complete species list for the tetrad, but a sample of what one can find during a pair of visits (one early, one late) in winter and/or breeding season. We aim to cumulatively cover at least eight tetrads in every 10-km square in Britain and Ireland during the winter and the breeding season. You can take on as many tetrads as you wish. This is a great opportunity to visit those hidden corners of the landscape and find new birds and follow the seasonal changes.
How to help
Anyone and everyone can take part by completing Roving Records forms. These are available from your Regional Organiser (ME!), from BTO HQ and can be printed off directly from the website (www.birdatlas.net). If you'd like to take on one or more tetrads for Timed Tetrad Visits please contact your Regional Organiser (ME!) who will be coordinating coverage.
WeBS
If you would be interested in taking part in the next WeBS survey, please contact Harold Lilley by email halilley@tiscali.co.uk or by phone on 01202 889633. The next count will begin early Sept 2007.