House Martin
Delichon urbica
Major towns10km Square IDs
Important wetland bird sites
Other important bird sites
First Breeding Atlas
Status
Tetrads

Possible
65

Probable
14

Confirmed
173
Total
252
Second Breeding Atlas
Status
Tetrads

Possible
60

Probable
29

Confirmed
219
Total
308
New Breeding Atlas
Status
Tetrads

Possible
98

Probable
43

Confirmed
151
Total
292

Not surveyed
2