Table 1.

Model selection results for analysis of diel variation in fatal bird-window collisions.

Logit model	Count model	Ka	ΔAICcb	AIC weightc
SurveyTime	Season	7	0.0	0.49
SurveyTime	Null	5	1.0	0.30
Null	SurveyTime + season	9	1.6	0.22

Confidence set models (i.e., those with ΔAICc ≤ 2) resulting from full model selection comparison among candidate zero-inflated Poisson regression models that included factors potentially affecting numbers of fatal bird collisions found in morning, midday, and evening collision surveys in Stillwater, Oklahoma, USA in 2015–2016. Parameters in logit and count models included Season (spring, summer, fall) and SurveyTime (survey start time in decimal format). Weights are based solely on comparison of these models; full model selection results are shown in Supplementary Table S1.

^aNumber of model parameters.

^bDifference in AICc value between model and top model.

^cAICc Weight—relative support for model.