The Wonders of Bird Migration

Bird migration is predominantly sparked by changes in daylight length and temperature, signaling birds to move to areas with optimal resources for breeding and feeding.

Birds use the Earth's magnetic field, stars, the Sun, and landmarks to navigate during migration. Some species, like the bar-tailed godwit, fly non-stop for 7,000 miles across the Pacific.

Not all birds are long-distance migrants. Some travel short distances, even within the same geographic region, while others cross continents and oceans on their migratory paths.

Birds adopt V formations to conserve energy during flight. The updraft in each bird's wingtip vortex reduces wind resistance for the following bird, allowing for efficient long-distance travel.

Climate change is impacting migration patterns. Birds are departing earlier and arriving later, with some species even altering their routes and destinations to adapt to changing environmental conditions.

City lights can disorient migrating birds, leading to fatal collisions with buildings. Efforts like 'Lights Out' campaigns help reduce this risk by minimizing urban light pollution during peak migration seasons.

Conservation strategies, including protected areas and international treaties, are crucial for safeguarding migratory birds. Habitat preservation along migration routes supports species survival in the face of numerous threats.

The Arctic tern travels up to 44,000 miles annually, experiencing two summers a year and enjoying more daylight than any other creature on Earth.