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Table 12 Number of studies documenting bird response to each deterrent type

From: Effects of artificial light on bird movement and distribution: a systematic map

Deterrent type Number of studies using deterrent type to deter birds Total number of studies documenting bird response to deterrent type
Laser 46 46
Flashing light 23 68
Spotlight 11 158
UV or near-UV light 7 9
Line markers 4 4
Pyrotechnic 1 1
  1. The first column shows the number of studies using each deterrent type to intentionally deter birds. The second column shows the number of studies documenting bird responses to each deterrent type with outcomes that could demonstrate deterrence, regardless of the purpose for which the study was conducted