This poster describes the anatomical traits of a rock pigeon (and other various birds) that ables them to overcome the difficulty of flying and how they differ from that of mammals. In essence, these can be categorized into skeletal, respiratory, and circulatory traits. These traits ables fast blood circulation, continuous air delivery to the lungs, and powerful wing flap. An interesting point is that birds have nine air sacs in addition to their lungs, working as extra oxygen storage as wing flapping requires a tremendous amount of energy from the body.

Alternative design and layout was made together with the initial design, fit for different purposes and aesthetic.