Nests with fewer young are brooded more, presumably because smaller broods lose heat faster. Upon hatching the altricial chicks are brooded until the nestling phase. Hatched young are altricial, brooded by the female but fed by both sexes. Chicks are brooded by the adults for the first ten days after hatching. They are mostly brooded by the female, but sometimes the male will also brood. Both the fertilized eggs and larvae are brooded within the male's mouth. Chicks are precocial, however are brooded during early development. Altricial chicks need help thermoregulating and must be brooded for longer than precocial chicks. Driven out by Tulkas, Melkor brooded in the darkness at the outer reaches of Arda. Without a role or rank, Kulikovsky brooded in Denmark, becoming moody and listless. I stayed home alone, ate very little, and drank too much and brooded. After fertilisation, the eggs are brooded in the body cavity for about a week. Incubation lasts 35 days and their chicks are brooded for 26 days. Fertilization takes place here and the eggs are brooded through their early developmental stages. The young are fed by both parents but are mostly brooded by the female.