Most females incubate the eggs while the male provides food for himself and the female. Both Old and New World vultures tend to share incubation between the male and female. Incubation usually begins before the clutches are complete. As a result, the eggs hatch over two or more days. Incubation lasts four to seven weeks according to species.
Large species tend to have longer incubation periods than small species.
G. Chicks at hatching. The egg tooth is not a true tooth and falls off soon after hatching. Chicks hatch with their eyes open and are covered with a long, thin coat of white, buff, or grayish down. Newly hatched chicks are relatively helpless and unable to stand. H. Care of young.