I presume you are a child, so I am going to go easy on you.
You need to stop with your animal 'experiments' and leave the pigeon to hatch and raise their own eggs.
It is going to end badly for any other birds that hatch out, either by the pigeons or your incubator.
You have not thought what you will do to raise the hatched baby birds.
It is very difficult to raise a single chickens chick, as they are best in groups.
Do you even have an incubator to keep it in when it hatches?
You can not leave it with the pigeons as the 2 kinds of birds need different care, and the chicken chicks will die. Do you what that to happen?
It is wrong and illegal to be taking wild birds eggs. If the sparrow hatched you would stand nearly zero chance of being able to care for it and feed it. It would likely suffer and slowly die of starvation and lack of proper care. That is just cruel.
These are the lives and living creatures, not some fun experiment or game.
You need to stop with your animal 'experiments' and leave the pigeon to hatch and raise their own eggs.
It is going to end badly for any other birds that hatch out, either by the pigeons or your incubator.
You have not thought what you will do to raise the hatched baby birds.
It is very difficult to raise a single chickens chick, as they are best in groups.
Do you even have an incubator to keep it in when it hatches?
You can not leave it with the pigeons as the 2 kinds of birds need different care, and the chicken chicks will die. Do you what that to happen?
It is wrong and illegal to be taking wild birds eggs. If the sparrow hatched you would stand nearly zero chance of being able to care for it and feed it. It would likely suffer and slowly die of starvation and lack of proper care. That is just cruel.
These are the lives and living creatures, not some fun experiment or game.