Do hummingbirds hitchhike on geese for the winter and to where?

No, hummingbirds do not hitchhike on geese, or other birds, for migration or any purpose. Each fall, hummingbirds embark on their own long and tiring journey, often covering hundreds of miles to wintering grounds in warmer regions. They possess the remarkable ability to build up extra fat (up to 50% of their body weight) as an energy reserve for the flight.