Fueling Up
How do hummers fuel up for migration? They gorge on insects and spiders — almost doubling their weight in about a week. Layers of fat build up on the hummingbird's back, belly, and throat. A licensed bander gently blew on this hummer's feathers to see the white band of fat on its belly.

Journey North: Hummingbird Migration

Rachel Powless

Journey North Home Page   Facebook Pinterest Twitter   Annenberg Media Home Page
Copyright 1997-2017 Journey North. All Rights Reserved.   Contact Us    Search