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The results of GLMs investigating whether variation in (a) number of fledglings (n = 113) or (b) nestling mass (n = 86) was explained by year, parental CORT or the interaction between parental CORT and year. Values in italics denote statistically significant factors.
| factor | d.f. effect | s.e. | t | p |
|---|---|---|---|---|
| (a) number fledged | ||||
| year | 2 | 0.92 | −2.51 | 0.014 |
| CORT | 1 | 0.38 | −0.77 | 0.445 |
| year × CORT | 2 | 0.53 | 2.11 | 0.037 |
| (b) nestling mass | ||||
| CORT | 1 | 0.14 | −2.60 | 0.011 |
