What food these chickens eat?

Please provide me with more context! I need to know which chickens you are referring to.

For example, tell me:

* Where are these chickens? (A farm, a backyard, a wild flock?)

* What kind of chickens are they? (Laying hens, meat birds, heritage breed?)

* Are they free-range, caged, or something else?

Once I have this information, I can give you a more accurate answer about what these chickens eat.