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.
Quick Answer. Hummingbirds can fly at an average speed of roughly 25 to 30 miles per hour and can dive at speeds of up to 60 miles per hour. These tiny birds can flap their wings approximately 70 times per second during normal flight and around 200 times per second when they are diving. Continue Reading.