Table 3 Relative risk ratios (RR) and efficacy of the laser to reduce wild birds visits estimated by taxonomic Order.

Order	Control	RR	95% CI	Efficacy %	95% CI	R² Nagelkerke^a
Anseriformes	December (this study)	0.003	0.000–0.016	99.67	98.4–99.98	0.96
	December	0.001	0–0.008	99.86	99.19–99.99	0.96
	January	0.003	0–0.034	99.9	98.9–100	0.63
Passeriformes	December (this study)	0.039	0.015–0.091	96.06	90.81–98.51	0.96
	December	0.008	0.003–0.023	99.19	97.69–99.74	0.96
	January	0.016	0.002–0.099	98.43	90.08–99.81	0.63
Other	December (this study)^b	0.256	0.013–1.770	74.4	0.00–98.70	0.96
	December^c	0.150	0.008–0.891	85.03	10.93–99.22	0.96
	January^c	0.003	0–0.018	99.69	98.16–99.98	0.63

^aThese measures indicate the overall performance of the generalized linear models (negative binomial distributions) used to quantify the RR and Efficacy; the three R² values are given for each of three models (Number of birds ~ wild bird Order + Laser_present:Order) fitted for each of the scenarios: (1) this study, (2) December previous study as control, (3) January previous study as control.
^bThe Orders Falconiformes, Gruiformes and Strigiformes were grouped as “Others”.
^cThe Orders Charadriiformes, Falconiformes, Gruiformes and Strigiformes were grouped as “Others”.

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