Biology
Climate Change and Phenological Mismatches in Migratory Songbirds
Quick fact
Across Europe and North America, many migratory songbirds are arriving at their breeding grounds up to two weeks earlier than they did 50 years ago, yet the insects they feed their chicks are emerging even earlier, creating a growing mismatch that can reduce chick survival by up to 80% in some years.
Why this is interesting
Every spring, millions of songbirds arrive at their breeding grounds to feast on insects. But what if they arrived when the insects were already gone? Climate change is making this a reality, and the consequences are dire.