Chickens love eating treats along with their grit. They can enjoy almost anything, for instance, fruits, vegetables, grains, bugs, and much more.
Chickens can indeed eat chickpeas, also known as garbanzo beans, but only when cooked. Uncooked chickpeas are harmful to poultry.
If you give an appropriate amount of chickpeas to chickens, then there are no chances of them becoming sick.
It is better to not give chicks any treat until they reach 10 weeks of age. However, if the chick wants to eat it, giving them mashed chickpeas is a better option to prevent choking.