I have pigeon problems. I have young pigeons and then when they grow a little bit,they will lose weight,become very weak, they don't want any food, and after 1-2 days it will die. Please help me because I don't now what I'm going to do:confused:

I think you should experiment with them, like putting them in separate cages and feeding them different amounts of food and different kinds of food.

What are you feeding them?
I recommend that you try Harrison's Bird Food. Harrison's Bird Foods is a family of certified organic pet bird diets that were formulated to make your bird as healthy as it can possibly be. These pellets are great. I would start with High potency. A big part of them being healthy is what they eat. Seeds don't really offer any real nutrition since most of it is wasted. Pellets are completely edible, and these specifically have a lot of things that birds need.
Were they eating on their own before? Are they weaned properly? You can also try offering other types of foods to see if they'll eat.
Also, make sure the area where they are is cleaned and disinfected often. Maybe you should take them to a vet and have them checked out?