With climate change, birds are taking off for migration sooner; not reaching destinations earlier

Migrating birds can and do keep their travel dates flexible, a new study published online on January 28th in Current Biology reveals. But in the case of pied flycatchers, at least, an earlier takeoff hasn't necessarily translated into an earlier arrival at their destination. It appears the problem is travel delays the birds are experiencing as a result of harsh weather conditions on the final leg of their journey through Europe.

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