You'll find information for Annuals, Disease Control, Exotics and Tropicals, Fruits and Vegetables, Herbs, Insect Control, Lawn Care, Perennials, Roses, Shrubs, and of course, Trees. Tom Wood, of the Southeastern Arizona Bird Observatory, begs to differ. If hummingbirds were as big as ravens, it wouldn't be safe to walk in the woods. They're fighter pilots in small bodies. Hummingbirds are among the smallest warm-blooded animals on earth.
Hummingbirds get most of their energy by sipping nectar from flowers.
To keep itself alive a hummingbird must daily drink almost its weight in nectar. That's equivalent to a 180 lb. To meet its daily energy needs, a hummingbird must find 1,000 nectar bearing flowers. It competes with butterflies, bees, other pollinating insects, and other hummingbirds for them. It's enough to give these very pretty birds the personality of a junkyard dog.