Birds respond to different colours and intensities of light differently….

A study conducted on blue tits found they are begin morning activities earlier under all colours of lights: earlier under red and white light than green light (Jong et al. 2017). Jong et al. (2017) then tested light intensity of white and green light. At high intensities, both colours had comparable effects on the birds, however at low intensity the green light was the least disruptive (Jong et al. 2017).

The results of Jong et al’s study (2017) implies a solution to the light pollution threat! By altering the intensity of light to low-intensity settings, or minimum wattage fixtures, and by opting to use green-blue light for advertisements and building lighting at night could have mitigate the negative impacts of light pollution on migratory birds. The emergence and popularity of LED lights, which use energy more efficiently and are easily switched on and off without needing ‘warm up’ time, offers a great tool to implement these solutions. LED lights can be used a low intensity, and are available in a variety of different colours.

Source: https://www.pinterest.co.uk/pin/14073817562046813/

Lastly, the use of protected areas not only as areas of habitat and refuge for wildlife, but also as areas to be protected from light pollution. Gaston et al (2015) evaluated light pollution in protected areas worldwide and found most protected areas are experiencing increased light pollution due to urbanization in neighbouring areas. Gaston et al argue for protected areas being created in places that are separate from urban areas, and include a buffer zone to exclude artificial light from street lights and neighbouring towns and cities.