Wildlife

Wild Nesting Bird Light Pollution

Light pollution affects nesting birds through disrupted circadian rhythms, altered breeding timing, and increased predation risk.

Key Facts

Artificial light at night advances the onset of dawn song in many species by hours
Earlier breeding timing in urban areas creates mismatch with natural food availability cycles
Nest sites near artificial lighting have higher predation rates from visually hunting predators
Migratory birds become disoriented by urban light pollution during nocturnal migration
UK light pollution levels have increased by over 2 percent annually over the past decade

Welfare Considerations

Birds affected by light pollution experience disrupted physiology, compromised breeding timing, and increased predation risk that cumulatively reduce welfare and reproductive success. Reducing unnecessary artificial lighting provides welfare benefits across entire urban bird communities.

What You Can Do

Reduce unnecessary outdoor lighting and use directional, shielded fixtures where lighting is needed
Advocate for dark sky policies that limit light pollution in and around important wildlife habitats
Support organizations researching light pollution impacts on wildlife and advocating for solutions