Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie Annual Report: 2000
Table 5
| Crookston | Glyndon | Sheyenne | |
|---|---|---|---|
| Depredated: | 136 | 83 | 90 |
| Egg-laying stage | 7 | 0 | 1 |
| Incubation stage | 42 | 41 | 64 |
| Nestling stage | 37 | 42 | 25 |
| Cowbird predation | 0 | 0 | 18 |
| Weather-related | 10 | 7 | 0 |
| Trampled | 1 | 1 | 13 |
| Unknown | 0 | 1 | 3 |
| Abandoned: | 24 | 17 | 40 |
| Partial predation | 3 | 7 | 23 |
| Partial cowbird predation | 0 | 0 | 4 |
| Cowbird parasitism | 0 | 1 | 5 |
| Unknown | 21 | 9 | 8 |
