Table 1. Summary of field experiments.
| Yufutsu | Sendai | Total | |
|---|---|---|---|
| Number of study plots | 45 | 58 | 103 |
| Number of experiments | 210 | 157 | 367 |
| Number of owls | 21 | 71 | 92 |
| long-eared owl | 7 | 29 | 36 |
| short-eared owl | 14 | 39 | 53 |
| ural owl | 0 | 3 | 3 |
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