Because of this it is imperative that these nesting birds not be disturbed. Turning of the eggs Most birds will periodically rearrange the eggs within the nest. The incubation period is the time required for the eggs to hatch, given regular attention by incubating parents. Incubation periods range from as little as 10 days for some species of woodpeckers to 80 days for some species of albatrosses and kiwis. Incubation periods are directly related to egg size and indirectly related to adult body weight.
Incubation periods are also representative upon the possibility of nest predation.
Birds that nest in the open tend to have shorter incubation periods than those that nest in tree cavities or other holes.