| 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) | 962 | 353 | 334 | 32 | 345 | 98% |
| Medium (chequerboard low priority) | 931 | 338 | 136 | 24 | 154 | 46% |
| Low (coastal tetrads) | 186 | . | 13 | 2 | . |
| 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) | 962 | 353 | 332 | 16 | 336 | 95% |
| Medium (chequerboard low priority) | 931 | 338 | 104 | 17 | 111 | 33% |
| Low (coastal tetrads) | 186 | . | 14 | 1 | . |
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Results generated by SAS® software |
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birdatlas@bto.org |
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