Table 1.

Statistics describing the distributions of pairwise coefficients of kinship (k) and individual coefficients of inbreeding (f) among the sets of N_fem female, N_male male, and N_tot total song sparrows that contributed phenotypic data to analyses of (A) female liability for extra-pair reproduction, (B) male liability for within-pair paternity success, and (C) both liabilities and their covariance, or were retained in the respective pruned pedigrees. Full distributions of k are provided as Supporting Information

	Individuals in the pruned pedigree			Individuals that contributed phenotypic data
		Mean k ± 1SD	Median (range) of k		Mean k ± 1SD	Median (range) of k	Mean f ± 1SD	Median (range) of f
(A)	Ntot: 531	0.056 ± 0.046	0.053 (0.000 – 0.471)	Nfem: 254	0.074 ± 0.040	0.066 (0.005 – 0.409)	0.067 ± 0.050	0.064 (0.000 – 0.305)
(B)	Ntot: 559	0.055 ± 0.045	0.052 (0.000 – 0.471)	Nmale: 273	0.072 ± 0.038	0.064 (0.004 – 0.412)	0.062 ± 0.049	0.058 (0.000 – 0.305)
(C)	Ntot: 666	0.058 ± 0.044	0.055 (0.000 – 0.471)	Ntot: 514	0.073 ± 0.039	0.065 (0.004 – 0.463)
				Nfem: 250			0.067 ± 0.050	0.062 (0.000 – 0.305)
				Nmale: 264			0.062 ± 0.050	0.058 (0.000 – 0.305)