An increase in the price of chicken will lead to a decrease in the quantity of chickens demanded.

The Law of Demand in economics states that, all other factors being equal (ceteris paribus), as the price of a good or service increases, the quantity demanded for that good or service decreases. Conversely, as the price decreases, the quantity demanded increases. This inverse relationship is fundamental to demand theory.

The statement says: "An increase in the price of chicken will lead to a decrease in the quantity of chickens demanded." This directly aligns with the Law of Demand. When the price of chicken goes up, consumers will generally want to buy less chicken, assuming no other factors change.

Since the statement accurately reflects the Law of Demand, it is true.

The final answer is $\text{True}$