Study

Green light for nocturnally migrating birds

  • Published source details Poot H., Ens B.J., de Vries H., Donners M.A.H., Wernand M.R. & Marquenie J.M. (2008) Green light for nocturnally migrating birds. Ecology and Society, 13, 47-47.

Actions

This study is summarised as evidence for the following.

Action Category

Use lights low in spectral red to reduce mortality from artificial lights

Action Link
Bird Conservation
  1. Use lights low in spectral red to reduce mortality from artificial lights

    A replicated, controlled study from Friesland, the Netherlands (Poot et al. 2008), in September-November 2003, found that on clear nights, significantly fewer migrating birds were attracted to two 1,000 W lamps when they were covered with opaque white or red filters (61% of 38 birds and 54% of 13 birds reacting to each), compared with green (13% of eight) or blue (3% of 37) filters. The same pattern, but with higher overall levels of attraction were detected on overcast nights (white: 81% of 156 birds reacting; red: 54% of 24; green: 27% of 77; blue: 5% of 38).

     

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