Yes. That is how they move around and it is the muscles you are eating when you eat chicken
Yes they do.
The breast muscles are not the most powerful in all birds - only in birds capable of flight. This is because it is the breast muscles that power the wings.
migratory birds have strong wing muscles as they have to fly long long distances and it requires a lot of power to fly very far.
Birds fly in the air by pushing their chest muscles and moving their wings up and down.
thin bones, muscles and feathers
The most important flight muscles are the pectorals, which correspond to the muscles of your chest :)
Among other adaptations, birds have hollow bones to make for a very light skeleton, a large breastbone to attach flight muscles, and strong muscles in their chests for flight.
Hollow, light bones. Big chest muscles.
its the sternum.
Yes, it consists of the supracoracoideus and the pectoralis.
I wonder that bird's wings need carbohydrates to move up and down. The wings of birds are constituted of muscles and those muscles need proteins and carbohydrates to function, and I am referring to the flying birds, not to the land-based birds, although their wings need carbohydrates and proteins as well.
Not if the birds are young. The older birds have grown using muscles heavily and will be less tender but the flavor will be the same.