cellular - characterized by or divided into or containing cells or compartments (the smallest organizational or structural unit of an organism or organization); the cellular construction of a beehive; any effective opposition to a totalitarian regime must be secretive and cellular.
They are among the smallest of birds, most species measuring in the 7.5â13 cm (3â5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm bee hummingbird, weighing less than a U.S. penny (2.5 g). They are known as hummingbirds because of the humming sound created by their beating wings which flap at high frequencies audible to humans.
Size. Although it is hard to tell, female hummingbirds are typically larger than males. For example, females usually weigh between 2.8 and 4.5 grams, while males weigh between 2.4 and 3.6 grams.ale and female hummingbirds can be identified simply based on the color of their feathers. Male hummingbirds have bright feathers to attract females and to deter males by expressing their dominance. A patch of brightly-colored feathers on the necks of males is known as a gorget.