Mid-October is here. Cooling temperatures and shortening daylight length are triggering hummingbirds throughout North America to head south. Join us in celebrating the incredible journeys of hummingbirds and other species this Saturday, October 14 on World Migratory Bird Day.

As fall progresses, temperatures drop and daylight length shortens. Hummingbird migration is in full swing. Many adult males have already headed south, and more females and juveniles are following suit. Keep reporting your observations to Journey North!

Fall officially begins in the Northern Hemisphere on September 23, the autumnal equinox, as the sun crosses the celestial equator going south. In the Southern Hemisphere, the vernal equinox occurs around the same time; hummingbirds are making their way south to catch the official start of spring. Please keep reporting your observations of hummingbirds to Journey North as we track their progress south.