| 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) | 631 | 245 | 225 | 21 | 242 | 99% |
| Medium (chequerboard low priority) | 611 | 235 | 80 | 9 | 86 | 37% |
| Low (coastal tetrads) | 168 | . | 1 | 5 | . |
| 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) | 631 | 245 | 237 | 9 | 243 | 99% |
| Medium (chequerboard low priority) | 611 | 235 | 61 | 3 | 64 | 27% |
| Low (coastal tetrads) | 168 | . | 3 | 0 | . |
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Results generated by SAS® software |
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birdatlas@bto.org |
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