Table 1.
Breeding performance and female survival in monogamous broods.
| clutch size | number of hatchlings | number of fledglings | number of recruits | female survival probability | number of grandoffspring | |
|---|---|---|---|---|---|---|
| sample period (breeding attempts) | 1974–2003 | 1974–2003 | 1974–2003 | 1974–2001a | 1974–2001a | 1974–1999a |
| n | 1703 | 1703 | 1676 | 1478 | 1478 | 1275 |
| mean | 5.95 | 5.69 | 5.00 | 0.30 | 0.30 | 2.29 |
| s.e. | 0.02 | 0.03 | 0.04 | 0.02 | 0.01 | 0.16 |
a
Additionally, data from subsequent years (up to 2004) were considered for female survival, number of recruits and for lifetime reproductive success of recruiting birds fledging from 1974 to 1999.