Contact: Laura Zimmermann
Nilsson et al. measured with a tracking radar over three years the speed by which birds flew over Falsterbo Peninsula, a bird migratory hot spot in south-western Sweden.
Passerine birds, also known as perching birds, that migrate by night tend to fly faster in spring than they do in autumn to reach their destinations.
Credit: Cecilia Nilsson
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Related news release: Migrating birds sprint in spring, but take things easy in autumn