Educational Resources Major sponsorship provided by Wild Birds Unlimited.
Hummingbirds are very small birds with a high metabolism.
A great deal of energy is spent flying, so they must feed almost constantly. They usually feed on nectar and insects. Hummingbirds actually lap up the nectar with their tongues. A lot of people think that hummingbirds have a hollow tongue like a straw. Their tongues do have grooves on the sides that collect nectar.