Table 1. Model averaged estimates of models within 2 ΔAICc of the top model (See S2 Table) predicting the probability of birds initially choosing a chamber within the quiet noise regime, with 95% confidence intervals, based on the models within.

Parameter	Importance	Estimate	2.5% Confidence Interval	97.5% Confidence Interval
Intercept		-0.45	-1.60	0.70
Age (4)	1	-0.77	-3.32	0.41
Trial (2)	2	2.39	0.46	4.32