Climate change will affect birds, but exactly how is less than certain. We’re acting to conserve birds at risk now, regardless of how the future unfolds.

Although not the most immediate threat to birds, global climate change will be an increasing concern in the coming decades. Birds that are already rare and declining will face additional risk as some current threats intensify, such as degradation or loss of habitat and spread of invasive species.

Coastal habitats, such as those critical for breeding Mangrove Hummingbirds in Costa Rica, may be affected by sea level rise. As temperatures warm, the high mountain forests in Hawai‘i that are home to birds like the 'I'iwi are likely to experience an influx of introduced pests, especially by disease-carrying mosquitoes.

More frequent and severe weather events may further stress bird populations. Changes in climate patterns may alter the synchronization of bird migrations, such as the arrival of Red Knots on traditional feeding grounds on the Delaware Bay.

Slowing the Process of Climate Change

The destruction of forests releases carbon and hastens climate change. Studies show that deforestation accounts for 11 percent of all human-caused greenhouse gas emissions.

Conversely, reforestation and preventing deforestation are two strategies we can take to slow climate change. Many of our bird conservation projects protect carbon-rich tropical forests. For example, by creating nearly 70 bird reserves, we have protected nearly one million acres, keeping forest carbon in the ground.

Our tree-planting efforts restore forests that help to keep our climate stable. In one area of Peru alone, one million trees have been planted with ABC's help. Across Latin America and Hawai'i, our reforestation efforts have resulted in the planting of 3.6 million trees and shrubs.

What We Can Do: Protect Rare Birds Now

Climate change is coming and birds will be affected, but many other threats are damaging to birds now.  It would be a travesty for species to be decimated or lost entirely — even before the effects of climate change manifest themselves.

That's why we are focused on conserving habitat and reducing other threats that have the potential to reduce bird populations even before the impacts of climate change are fully realized. Healthy populations are key to ensuring that species are resilient to the increased stressors that climate change may introduce in the future.


  • Our 20th anniversary magazine highlights some of our activities that help to fight climate change.
  • The Abra Patricia Reserve in Peru protects more than 25,000 acres of tropical forest—and birds found nowhere else on Earth.
  • Communities are critical to our work, and they benefit when we protect forests and plant trees!


  • There are plenty of ways to help birds today. Here are simple actions you can take to live a bird-friendly life.
  • Take action: Our easy-to-use alert system enables you to speak out for birds that need help now.
  • Help us do more to make the Western Hemisphere safer for birds: Donate!