For those who want to start a cattery, of wild or domestic poultry, it is important to know how long be late the birth of the chicks from the moment you begin to hatch the eggs.
In fact, we can see that the average time of hatching of the most common terrestrial birds, vary greatly depending on the species, starting from 18-20 days of Francolin to get to 35 days in the hatching of the eggs of muscovy duck.
Here is a table with the average time of hatching of the eggs, which will be very useful for choosing the type of birds to breed ("download").