Nesting instinct. Nesting behaviour refers to an instinct or urge in pregnant animals caused by the increase of estradiol (E2) to prepare a home for the upcoming newborn(s). It is found in a variety of animals such as birds, fish, squirrels, mice and pigs as well as humans.
Nest, eggs and young. Like the Osprey and the Bald Eagle, the Golden Eagle is a champion nest-builder, at least in terms of size. Golden Eagles construct a huge platform of sticks, which they line, or pad, with thinner branches and even hair and grasses.hese large birds sometimes build their nests in trees or might use man-made structures, such as an electricity pylon. In Alaska, some Golden Eagles were documented nesting on the ground., but most often they nest on large ledges on cliff faces. Golden Eagles may use the same nest over many breeding seasons.
Bald and golden eagles are protected under the Bald and Golden Eagle Protection Act, passed by Congress in 1940. The Act prohibits the taking or possession of any bald or golden eagle, alive or dead, including any part, nest, or egg, unless allowed by permit.uvenile bald eagles in their first year of life are dark brown over their body wings, head and tail. Their beak and eyes are dark. As they age, juveniles may show white feathers anywhere on the body, especially the breast and under the wings.