Figure 2. Group reproductive stages change over time.
Percentage of birds (nbirds = 32) assigned to the seven detailed breeding stages (coloured bars) and the three corresponding condensed nest stages over the first 20 days of the trials. Earliest onset of nest material provisioning (day 7) is indicated by a green dashed vertical line. Source data are available at http://dx.doi.org/10.5061/dryad.vt69s.
Figure 2—figure supplement 1. Differences in steroid hormone concentrations at baseline levels and the three nest stages.
Boxplots of (A) testosterone (TESTO), (B) dihydrotestosterone (DHT), and (C) progesterone (P4) concentrations with natural log-transformed values at baseline (Base) and the three nest stages Pre-, Early and Later Nesting, analysed separately for the 16 females (red, nBase = 16, nPre = 11, nEarly = 5, nLater = 13) and 16 males (blue, nBase = 15, nPre = 12, nEarly = 5, nLater = 12) from four trials. Bayesian estimates are plotted as coloured points, and 95% credible intervals as coloured lines. For an explanation of abbreviations, lines, and symbols, see Figure 4. For methods, detailed results and discussion of hormones in relation to nest stages see Appendix 1. Source data are available at http://datadryad.org/review?doi=doi:10.5061/dryad.vt69s.