Final answer:
The 'Bird of America' is most commonly associated with the Bald Eagle (A), which is the national emblem of the United States and symbolizes freedom and strength in American culture.
Step-by-step explanation:
The Bird of America often refers to the Bald Eagle, which is not only a beautiful and majestic bird but also the national emblem of the United States of America. Featured by ornithological artists like John Audubon in works including The Birds of America, the Bald Eagle represents freedom and strength. It is easily recognized by its white head and tail, with a dark brown body and wings, and a yellow beak.
While the options such as the American Robin and the Northern Cardinal are also birds found in America, the title 'Bird of America' specifically aligning with the query suggests the Bald Eagle as the answer, a symbol widely associated with American imagery and the only bird on the list that has such a national significance.