| Winter tetrad progress |
| Priority | No. of tetrads |
No. needed for minimum coverage (min-8-rule) |
Total no. TTVs (2 visits) |
Total no. TTVs (only 1 visit) |
No. using min-8-rule (1+ visits) |
% of target (1+ visits) |
|---|---|---|---|---|---|---|
| High (tetrads on land) | 596 | 230 | 226 | 8 | 229 | 100% |
| Medium (chequerboard low priority) | 621 | 246 | 113 | 6 | 118 | 48% |
| Low (coastal tetrads) | 170 | . | 15 | 1 | . |
| Breeding season tetrad progress |
| Priority | No. of tetrads |
No. needed for minimum coverage (min-8-rule) |
Total no. TTVs (2 visits) |
Total no. TTVs (only 1 visit) |
No. using min-8-rule (1+ visits) |
% of target (1+ visits) |
|---|---|---|---|---|---|---|
| High (tetrads on land) | 596 | 230 | 227 | 7 | 230 | 100% |
| Medium (chequerboard low priority) | 621 | 246 | 68 | 3 | 70 | 28% |
| Low (coastal tetrads) | 170 | . | 25 | 4 | . |
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Results generated by SAS® software |
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birdatlas@bto.org |
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