Hummingbirds are special little birds. They dart and hover, zipping sideways, backwards, up and down. Their beauty and agility fascinate us and bring action to the garden. Hummingbirds need high-energy fuel and they get it from the nectar that certain flowers produce. In return, hummingbirds transfer pollen from the male part of a flower (the stamens) to the female part (the pistil) of a different flower. Flowers that are especially adapted for hummingbird pollination are long and tube-shaped and often red.