Northern Shoveler vs Aleutian Tern

In short

The Northern Shoveler and Aleutian Tern are vastly different in appearance and habitat preference. The Northern Shoveler is a dabbling duck with a distinctive large, spatula-shaped bill, while the Aleutian Tern is a sleek seabird with a slender, pointed bill. These species are unlikely to be confused in the field due to their contrasting habitats and physical characteristics.

Identification tips

• Bill Shape: Look for the Northern Shoveler's large, spatula-shaped bill versus the Aleutian Tern's slender, pointed bill.
• Habitat: Northern Shovelers are found in freshwater wetlands; Aleutian Terns are coastal and marine.
• Plumage: Note the Northern Shoveler's bold plumage with green, white, and chestnut in males, compared to the Aleutian Tern's gray and white with a black cap.
• Behavior: Observe feeding behavior; dabbling for Shovelers, diving for Terns.

Size

The Northern Shoveler is a medium-sized duck, larger and bulkier than the slender and smaller Aleutian Tern.

Plumage

Northern Shovelers have a striking plumage with males displaying a green head, white chest, and chestnut sides. In contrast, Aleutian Terns have a more subdued gray and white plumage with a black cap and a white forehead.

Behaviour

Northern Shovelers are dabbling ducks often seen skimming the water surface for food, while Aleutian Terns are agile fliers, often seen diving for fish.

Habitat

Northern Shovelers inhabit freshwater wetlands, such as prairie potholes and coastal marshes, whereas Aleutian Terns are found in coastal and marine environments, often nesting in colonies on islands.

Voice

The Northern Shoveler's calls are typical of dabbling ducks, while Aleutian Terns have high-pitched, sharp calls common to terns.