Nidicolous animals are those that stay at their nest or birthplace for a long time after birth, due to their dependence on the parents for feeding, protection and learning survival skills. It is the opposite of nidifugous

Nidifugous

Nidifugous organisms are those that leave the nest shortly after hatching or birth. It is derived from Latin nidus for "nest" and fugere meaning "to flee". The terminology is most often used to describe birds and was introduced by Lorenz Oken in 1916...

 where the animal is able to leave the nest very quickly.
The great majority of nidicolous animals are altricial

Altricial

Altricial, meaning "requiring nourishment", refers to a pattern of growth and development in organisms which are incapable of moving around on their own soon after hatching or being born...

, in that an animal born helpless, blind, without feathers, etc simply is unable to fend for itself. Examples of nidicolous animals are most mammals, marsupials and many species of birds. However, the concepts of altricial and nidicolous are not identical. All altricial animals are nidicolous by necessity, however, an animal may be nidicolous, i.e. staying at the nest, even if they are precocial

Precocial

In biology, the term precocial refers to species in which the young are relatively mature and mobile from the moment of birth or hatching. The opposite developmental strategy is called "altricial," where the young are born or hatched helpless. Extremely precocial species may be called...

and fully capable of leaving if needed.