1. Birds Use Earth's Magnetic Field For 'Stop Signs' When They Migrate  ScienceAlert
  2. Magnetic navigation: Songbirds use the Earth's magnetic field as a stop sign during migration  Phys.org
  3. A Magnetic 'Stop Sign' Tells These Birds Where to Nest  National Audubon Society
  4. Migrating birds may use slope of Earth’s magnetic field as ‘stop sign’  New Scientist
  5. How migratory birds use Earth's magnetic field to navigate and fly home  Vox.com
  6. View Full coverage on Google News

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