Table 2. Results of a linear mixed model for nestling male sex ratio, represented as the proportion of male nestlings within a given brood.

	F-value	d.f.	P-value
Full Model
Treatment	4.03	2	0.033
Complete	1.85	1	0.187
Year	0.02	1	0.910
Minimal Model
Treatment	4.05	2	0.031
Tukey Contrasts	Estimate	s.e.	P-value
Heavy - Undisturbed	2.00	0.71	0.013
Moderate - Undisturbed	0.77	0.52	0.300
Moderate - Heavy	−1.22	0.70	0.183

Both the full model containing, treatment, complete (whether the brood size equalled the clutch size), and year, and a minimal model containing just treatment are presented. Pairwise significances were determined using Tukey's post-hoc analysis, estimate, standard error and p-values are presented.