Trumpeter Swan vs Whooper Swan

In short

The Trumpeter Swan and Whooper Swan are large white swans that can be distinguished by their bill patterns and vocalizations. The Trumpeter Swan has an all-black bill, while the Whooper Swan features a distinctive yellow and black bill. Both species are similar in size, but their calls are notably different, with the Trumpeter Swan having a deeper, trumpet-like call compared to the Whooper Swan's more bugling sound.

Identification tips

1. Bill pattern: Look for the all-black bill of the Trumpeter Swan versus the yellow and black bill of the Whooper Swan. 2. Vocalization: Listen for the deeper trumpet-like call of the Trumpeter Swan compared to the Whooper Swan's bugling call. 3. Location: Consider the geographic location; Trumpeter Swans are in North America, while Whooper Swans are in Eurasia. 4. Group size: Whooper Swans are more likely to be seen in larger flocks.

Size

Both species are large swans, with the Trumpeter Swan being slightly larger and heavier than the Whooper Swan.

Plumage

Both species have entirely white plumage. The key difference lies in the bill: the Trumpeter Swan has an all-black bill, whereas the Whooper Swan has a yellow and black bill.

Behaviour

Both species exhibit similar behaviors typical of swans, such as swimming gracefully and foraging in water. However, the Trumpeter Swan may be more solitary or found in smaller groups compared to the Whooper Swan, which often forms larger flocks.

Habitat

Trumpeter Swans are found in North America, often in wetlands and large bodies of water, while Whooper Swans are native to Eurasia, frequenting lakes, rivers, and coastal areas.

Voice

The Trumpeter Swan has a deep, resonant, trumpet-like call, while the Whooper Swan's call is more bugling and higher-pitched.