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 1984-89
Species
Tetrads
0
13
3%
1 - 30
95
23%
31 - 45
160
39%
46 - 60
128
31%
61 - 75
9
2%
76 or more
1
<1%