Is there any disadvantage to eat too much sand?

There is a bad disadvantage to eat too much sand, and it may accumulate into the sac, causing it to die.If you raise your family, you can prepare some health sand, which can not only promote the digestion of pigeons, but also help it supplement trace elements.The owner can mix health sand into the feed and feed the pigeons.Every time you have to be fed to avoid pollution.The recipe of health sand must also be adjusted according to the different growth stage of the pigeons.