Table 4 Summary of daily exposure time (in min.) of free-range study area to wild birds. This is a combination of the number of birds visiting daily and the duration of their visit during the experimental periods (28 observation days with and 29 days without the laser in operation), grouped by taxonomic Order.

From: Efficacy of an automated laser for reducing wild bird visits to the free range area of a poultry farm

Order

Laser present

Median time

Min

Max

Anseriformes

No

2144.21

15.80

15,323.45

Yes

1.25

1.25

1.25

Passeriformes

No

31.75

0.37

253.43

Yes

4.43

1.00

5.05

Falconiformes

Yes

0.45

0.45

0.45

Gruiformes

No

1.88

1.88

1.88

Strigiformes

No

2.68

0.70

27.83