First, Vermont hummers don't travel to Tierra del Fuego. To Mexico, or perhaps as far as Panama, but no farther south than that in the winter. But over land, they migrate around 20 miles per day, with frequent stops for rest and food. Their flight speed in migration is about 25 MPH, but some males have been clocked at 63 MPH in dives, during aggression display flights. The average adult Ruby-throated Hummingbird's bill is about 17 millimeters long.
Some tropical species have much longer bills.
The first birds arrive in the southern part of your state around May 1. They reach the northern counties around May 15. Put your feeder out a week early. You can watch my migration maps to see when they're getting close. Click Here to visit my Hummingbird Website. .