Table 2.

Final stepwise GLM models. F statistic for whole model and independent effects of each variable in the model, P-values and direction of effect.

Dependent variable	Effects	F (df)	P	Direction
Matching rate	Whole model	6.29 (6,27)	0.0003
	Latency first approach	6.04 (1,27)	0.043	−
	Closest approach	5.73 (1,27)	0.024	−
	Male song length	10.04 (1,27)	0.004	+
	Male overlapping	4.02 (1,27)	0.055	+
	Male minimum age	4.50 (1,27)	0.043	+
	Breeding stage (B+I+F vs N+X)*	10.13 (1,27)	0.004	+
Overlapping rate	Whole model	5.40 (3,30)	0.004
	Latency first retreat	9.59 (1,30)	0.004	−
	Matches by playback	6.62 (1,30)	0.015	+
	Male minimum age	5.11 (1,30)	0.031	−
Song-type versatility	Whole model	13.70 (4,27)	<0.0001
	Matches by playback	7.57 (1,27)	0.011	+
	Pre-playback song rate	7.75 (1,27)	0.010	+
	During playback song rate	9.85 (1,27)	0.004	−
	Latency first retreat	5.99 (1,27)	0.021	+
	Time of day	3.92 (1,27)	0.058	+
	Breeding stage (F vs X+B+I+N)*	16.37 (1,27)	0.0004	−
Post-pbk delayed matching rate	Whole model	2.85 (3,27)	0.056
	Post time < 15 m	7.15 (1,27)	0.013	+
	Male minimum age	4.68 (1,27)	0.040	+
	Time of day	2.17 (1,27)	0.153	−

^*Breeding stages: X = none, B = building, I = incubating, N = nestlings, F = fledglings