![]() ![]() ![]() Migratory birds have enough challenges besides light pollution, including dwindling habitat in both their breeding and winter sites, decreases in food, especially insects, and increasingly, climate change. Birds need to expend more energy during migration, which lowers the changes of a successful migration to their destination.Įncouraging people to turn off lights during peak bird migration is one strategy scientists and groups like Portland Audubon are trying to make the birds' journey a bit more safe and successful. This artificial light source reduces and perhaps eliminates the light from the sky, so birds begin to be drawn off course or become disoriented. Large urban centers scatter light far from their intended target on the ground, shining and reflecting light up into the sky in many cases. City lights are a major impediment of birds to safely and effectively navigate while migrating. The leading hypothesis and scientific evidence suggests that birds use the moon and stars as a way to navigate. Most migratory birds make their journeys at night, after sunset. The answer is, yes, this is a real thing. This is a great question and a worthwhile effort being promoted by Portland Audubon. Hello and thank you for contacting OSU Extension Service! ![]()
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