Migratory birds flock to warm lands

migratory birds flock warm lands migration sky aerial group feathers seasonal journey avian fly migration route destination warmer climates wildlife natural phenomenon majestic soar vformation long distance instinct nature annual breathtaking spectacle ornithology flight travel winged patterns overhead birdwatching unity natures rhythm aweinspiring global traverse bird species remarkable ecological phenomenon navigate instinctual air currents international cross continents airborne bird migration