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Factors affecting the length of the nestling period in riflemen as calculated from an analysis of covariance
| Nestling period (days) | ||||
|---|---|---|---|---|
| Effects | Estimate ± SE | F | df | P |
| Helped | 0.11±1.51 | 0.24 | 1,41 | 0.70 |
| Brood size | −0.40±0.24 | 3.94 | 1,41 | 0.054 |
| Date | <−0.01±0.11 | 0.11 | 1,41 | 0.74 |
| Helped | brood size | 0.04±0.43 | 2.10 | 2,41 | 0.14 |
