Birdsong and Climate Change
- luanniewang
- May 25, 2025
- 2 min read
May is my favorite spring month, and there’s nothing better than waking up to a sunny sky, a warm breeze, and birdsong. However, many of you might’ve noticed that you haven’t been hearing much of that last one. The reason for that is because the lives of birds, especially in terms of migration, are changing largely due to the warming climate.
Mismatched timing, changing routes
In order to fuel themselves as they travel thousands of miles, migrating birds eat constantly when not flying. Unfortunately, climate change is causing spring to shift earlier, and birds that haven’t adapted to that change are arriving at stopovers and breeding sites where the “spring green-up” period of abundant leaves, flowers, and insects has already died down. Such a discrepancy is called a phenological mismatch, which is when species and environments that interact change the timing of their events at different rates, leading to mismatched resources and needs. Birds are forced to adjust their traditional migration paths, whether that means moving to higher elections or shortening their migration distances.
Extreme weather
Climate change means more extreme weather events like droughts and wildfires, which can degrade and destroy the habitats of birds, as well as interfere with stopover sites where birds feed during migration. The changing climate also means more storms, hurricanes, and heatwaves, which can directly disrupt, delay, harm, and even kill (traveling) birds. Furthermore, natural disasters can ruin nesting areas, hindering species growth and especially posing a threat to vulnerable species at risk of extinction.
Sea-level rise
Many birds that nest in wetlands close to the sea are having their nests drowned in high tides. This also disrupts species growth and threatens endangered birds.
Disease
Warmer climates allow disease vectors such as mosquitoes and ticks to survive and breed more in previously too-cold regions. This can lead to the spread of diseases such as avian malaria.
Despite these big issues, there are also ways you can help:
Support bird-friendly spaces: Keep outdoor areas safe for nesting and feeding. Plant native flowers and trees, avoid pesticides and fertilizers, and keep your cats indoors!
Turn off lights at night: Birds, especially those migrating, typically travel after dark and can be confused by city lights, leading to harmful collisions with windows and other structures. This practice also helps to reduce your carbon footprint!
Take part in climate action. To address the big-picture problem, we need to start with the root cause. Advocate for clean energy, protected habitats, and policies preserve nature.
We need to work to protect the birds, not just for their sweet sounds, but for their role in the balance of ecosystems as pollinators, seed-spreaders, and pest-controllers. Birdsong isn’t just a symbol of springtime — it’s an indicator of a healthy planet.
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