Table 4.

Changes in structural body size (wing length) between 1977 and 2014 for (a) red-winged fairy-wrens and (b) white-browed scrubwrens. Shown are coefficients and their standard errors (s.e.) for variables included in the top models with ΔAICc less than 2, following model selection based on AICc. Variables identified as important in the best model have 95% CIs of estimated coefficients that do not overlap zero and are shown in italics. Models were ranked by ΔAICc values. n.a. represents variables that were not included in the model.

model	intercept	abrasion score	age at last capture	age	year	sex (male)	years×sex	d.f.	AICc	ΔAICc
(a) red-winged fairy-wrens
1	49.615 ± 0.065	n.a.	0.046 ± 0.020	0.179 ± 0.017	−0.024 ± 0.004	2.036 ± 0.085	0.010 ± 0.006	9	10653.865	0.000
2	49.630	n.a.	0.047	0.177	−0.030	+	n.a.	8	10654.583	0.718
(b) white-browed scrubwrens
1	52.019 ± 0.110	−0.062 ± 0.019	n.a.	0.269 ± 0.025	n.a.	2.513 ± 0.139	n.a.	7	3224.929	0