What will happen if you kept a egg warm?

If you keep an egg warm, it will eventually hatch into a baby bird. The warmth provides the necessary heat for the egg to develop and mature. The time it takes for an egg to hatch depends on the species of bird, but it typically ranges from 12 to 24 days.

During the incubation period, the egg will go through several stages of development. The first stage is the embryonic stage, during which the embryo forms. The second stage is the fetal stage, during which the embryo grows and develops into a fully-formed bird. The third stage is the hatching stage, during which the bird breaks out of the egg.

Once the bird has hatched, it will need to be cared for until it is able to fend for itself. This may involve providing it with food, water, and shelter. Depending on the species, it may also involve teaching the bird how to fly and how to find food.