

Human: How do you pick a good rooster for a cock fight?

Assistant: The best way is to find a rooster with a big comb, large wattles, a big forehead and a large stature.

Human: What are wattles?

Assistant: 
Those are the fleshy parts that hang down from the sides of the comb.
Wattles are the fleshy appendages on the rooster’s neck.  They are most noticeable when the rooster fights.  The rooster can’t use them to make a significant attack, but the audience can see them and can admire the bird’s bearing.