The Life of Birds: Bird Life Cycles

Birds are a vertebrate group with which we are all familiar. This beautiful and colorful series of videos explores the major characteristics, adaptations, and life cycles of this group of animals. Special emphasis is paid to the features that enable birds to fly. Vivid footage from throughout the world also illustrates some of the major groups of birds. Concepts and terminology include: flight, wings, contour feathers, down feathers, endothermic, crop, gizzard, four-chambered heart, amniotic egg, albumin, yolk, incubation, Archaeopteryx, Passeriformes, Piciformes, Charadriiformes, Falconiformes, and Anseriformes.