Table 1.

Set of Cormack-Jolly-Seber recaptures-only models for parameterizations of detection probability for cliff swallows in southwestern Nebraska, USA, 1997–2010. For all models, apparent survival was parameterized as ϕ(age*sex*year).

	Model: p*	ΔQAICc	wi	k	QDev.
(1)	age + year (QAICc = 90943.32)	0.00	0.58	197	2779.89
(2)	age + year + sex	0.65	0.42	198	2778.52
(3)	age	85.69	0.00	185	2889.77
(4)	age*year*sex	147.01	0.00	366	2584.97
(5)	sex	298.43	0.00	185	3102.52
(6)	.	298.57	0.00	184	3104.67

^*Parameters with interactions are joined by ‘*’; those having parallel (additive) relationships are joined by ‘+’; the designation ‘.’ represents a time-constant model; Akaike’s Information Criterion (AIC) values were corrected for over-dispersion, yielding quasi-AIC (QAIC_c) values (ĉ = 1.19). ΔQAIC_c values (the difference between the top-ranked model and all other models in the table) and model weights (w_i) were used to rank models.