Table 2.

Overall relative risk ratios (RR) and efficacy of the laser to reduce wild birds visits.

Control	RR	95% CI	Efficacy %	95% CI	R2 Nagelkerkea
December (this study)	0.018	0.007–0.043	98.17	95.69–99.28	0.48
December	0.007	0.002–0.020	99.31	98.02–99.77	0.48
January	0.009	0.003–0.024	99.09	97.56–99.69	0.54

^aThese measures indicate the overall performance of the generalized linear models; (negative binomial distributions) used to quantify the RR and Efficacy.