No
Eagles eat whooper swans.
YES! They are EXTREMELY rare!
they live in parts of Europe and North America!
they are 170cm in length and have a wingspan of 3m and weigh 20kg
28,000 feet. A flock of whooper swans were seen by an airline pilot at 29,000' arriving over Ireland and was confirmed by ground Radar!
In winter, whooper swans primarily feed on aquatic plants, including roots, tubers, and seeds found in shallow waters. They also consume agricultural grains when available, such as barley and wheat, which they forage from fields. Additionally, they may eat small invertebrates and other plant matter to supplement their diet during colder months.
Swans feed almost entirely on underwater vegetation. However, in winter they sometimes also eat grass or grains.
Well, first the colour. Black swans are ... well... black with a bright red beak and mute swans are white with a black band above the beak and the beak is a orange melting into a red near the tip. Second, mute swans tend to be much quieter than other swans. Mute swans are also one of the heaviest flying birds. Unlike black swans they tend to also be more territorial.
No, swans and ducks are both plant eaters.
No.
whooper trumpeter tundra black-necked black berwick corsoba whistling mute