The researchers found that changes in temperature had a strong association with migratory flight, with the bats likelier to migrate before coming warm fronts.
The study also revealed that noctule bats travel farther than expected on migratory nights: up to 238 miles each a night, much farther than previous estimates.
The bats tend to migrate before storm fronts, taking flight on nights with more wind and 'surfing' the air movements that accompany changes in temperature.
Better sensors mean more insight into bats' once-elusive habits, allowing researchers to gather data on bats' behavioral patterns during migration.
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