A cubic centimeter (cc) is volume which is a measure of the displacement of the engine. This is the total volume of all the cylinders (no. of cylinders x cross section area x stroke length) 1000 cc = one liter. so a 1500 cc engine is the equivalent displacement of a 1.5 liter engine.
The trumpeter swan (Cygnus buccinator) is a species of swan found in North America. The heaviest living bird native to North America, it also is on average, the largest extant species of waterfowl with a wingspan that may exceed 10 ft (3.0 m).
Trumpeter swans wings are 3.4 meters long. This beautiful bird with large neck is the largest bird of North America. These birds feed on aquatic plants and normally found in marshes and lacks. As far as the danger of extinction is concerned there is no serious risk of extinction to this bird.