It is well below freezing here in early January and I am about to travel south to a tropical country for the rest of the month for the warmth. I find myself a bit nervous about the trip even though the airplane does all the work of getting me there in half a day by sunset, places to stay are booked, and restaurants are nearby.
These little songbirds preceded me, taking weeks or months, traveling at night, with the hope that the habitats and foods they are headed toward are still there.
Here is a fascinating moving map of 118 species of songbird migrations on the move during one full year. https://www.allaboutbirds.org/news/mesmerizing-migration-watch-118-bird-species-migrate-across-a-map-of-the-western-hemisphere/