Mesmerizing Migration: Watch 118 Bird Species Migrate Across a Map of the Western Hemisphere — 22 Jan 2016

For the first time, scientists at the Cornell Lab of Ornithology have documented migratory movements of bird populations spanning the entire year for 118 species throughout the Western Hemisphere.

Source: https://www.allaboutbirds.org/mesmerizing-migration-watch-118-bird-species-migrate-across-a-map-of-the-western-hemisphere/ via #ifttt