Hello Darth,
Nice argument, but it hinges on a 'fertilized egg' being a chicken.
Even a viable chicken egg is not a chicken until it hatches.
Until then it is nothing but a fertilized chicken egg.
To call that a chicken is an over-simplification of the more precise description: 'fertilized chicken egg.'
If a farmer sent his son to the market with enough money to buy a dozen chickens, and the son came back with a dozen 'fertilized eggs,' it would not be too unexpected for the farmer to discipline his son, and ask him what he did with the rest of the money.