Sand Martin / Gwennol y Glennydd
Riparia riparia
Breeding 2008-11
Breeding 1968-72
Winter 1981/82-1983/84
Breeding 1984-89
Winter 2007/08-2010/11
Breeding 1984-89 vs 2008-11
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Birding sites
Contains Ordnance Survey data
© Crown copyright and database right 2013
Distribution map species lists
Breeding change maps
Species richness maps
© 2014 Glamorgan Bird Club
Breeding 2008-11
Status
Tetrads
Present
62
15%
Possible
9
2%
Probable
6
1%
Confirmed
13
3%
Total
90
22%