Table 1.

The probability of assessing an individual's sex or breeding state with certainty

Sex	Breeding state	${\mathrm{\delta }}_{\mathrm{sex}}$ a,b	${\mathrm{\delta }}_{\mathrm{status}}$ a
Female	breeder	0.30 (0.29–0.30)	0.52 (0.49–0.55)
Female	non‐breeder	0.30 (0.29–0.30)	0.14 (0.12–0.17)
Male	breeder	0.25 (0.25–0.25)	0.46 (0.43–0.49)
Male	non‐breeder	0.25 (0.25–0.25)	0.11 (0.10–0.12)

^aThe 95% confidence interval for each estimate is shown in parentheses.

^bApproximately 57% of the banded population has been sexed with certainty at some point during their lifetime.