There are two types of atomic bonds-ionic bonds and covalent bonds. They differ in their structure and properties. Covalent bonds consist of pairs of electrons shared by two atoms, and bind the atoms in a fixed orientation. Relatively high energies are required to break them (50â-â200 kcal/mol).
Hummingbirds fly by day when nectar sources such as flowers are more abundant. Flying low allows the birds to see, and stop at, food supplies along the way. They are also experts at using tail winds to help reach their destination faster and by consuming less energy and body fat. Research indicates a hummingbird can travel as much as 23 miles in one day.
Baby Hummingbirds Grow Up So Fast. Like honeybees and bumblebees, hummingbirds are an integral part of the pollination process. Theyâre also the tiniest birds in the world, with many species weighing in at less than a penny. Hummingbirds are native to the Americas, and can be found in Alaska, Chile, and everywhere in between.