Bird-watchers love to see vagrants, or birds that have traveled far outside their range. But scientists say they have a lot to teach us in a world facing ecological change.
“If we want to give birds the best chance at survival, habitat conservation needs to be part of our efforts to fight climate change,” a researcher says.
As climate change worsens, spring temperatures come earlier in the year, cueing tree swallows to build their nests sooner. This leaves baby swallows vulnerable as the inevitable cold snap happens.
