Species richness
Numbers of species recorded in each tetrad
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Contains Ordnance Survey data
© Crown copyright and database right 2013
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© 2014 Glamorgan Bird Club
Breeding 2008-11
Species
Tetrads
0
7
2%
1 - 30
70
17%
31 - 45
138
34%
46 - 60
150
37%
61 - 75
32
8%
76 or more
9
2%