Differences Between Trumpeter Swans And Tundra Swans?

Physical Characteristics

When identifying Trumpeter Swans and Tundra Swans, physical characteristics are crucial. Trumpeter Swans have a length of 55-65 inches and weigh 25-35 pounds, while Tundra Swans are 47-55 inches long and weigh 15-25 pounds. The bill of Trumpeter Swans is also significantly larger, measuring 4-4.5 inches, compared to 2.5-3.5 inches for Tundra Swans. Trumpeter Swans have a dark orange to reddish-orange bill with a black base, whereas Tundra Swans have a yellow base with a black triangle and a black knob at the base. The legs and feet of Trumpeter Swans are also black, while Tundra Swans have black legs with a yellow or greenish-yellow foot.

Habitat and Behavior

Trumpeter Swans and Tundra Swans inhabit different habitats. Trumpeter Swans prefer large, shallow wetlands with abundant vegetation, often near lakes and rivers. Tundra Swans, on the other hand, inhabit Arctic and sub-Arctic wetlands, including tundra, Arctic grasslands, and river deltas. When it comes to behavior, Trumpeter Swans are generally more aggressive and territorial, often forming long-term pair bonds. Tundra Swans, however, are more nomadic and often form large flocks during migration.

Identification Techniques

When identifying Trumpeter Swans and Tundra Swans, several techniques can be employed. One of the most effective methods is to observe the bird’s call. Trumpeter Swans have a low-pitched, trumpet-like sound, often described as a deep, resonant “oo-oo-oo.” Tundra Swans, on the other hand, have a higher-pitched, more nasal call that sounds like a “a-a-a” or “a-a-e-e.” Additionally, observing the bird’s behavior and habitat can also help to identify it.