Common Goldeneye vs Barrow's Goldeneye

In short

Common Goldeneye and Barrow's Goldeneye are both diving ducks with strikingly similar appearances, but they can be distinguished by key features. The most reliable field mark is the shape of the white facial patch: Common Goldeneye has a round spot, while Barrow's Goldeneye has a crescent-shaped patch. Additionally, Barrow's Goldeneye males have a steeper forehead and shorter bill.

Identification tips

• Look for the shape of the white facial patch: round in Common Goldeneye, crescent in Barrow's Goldeneye.
• Observe the head shape and bill: Barrow's has a steeper forehead and shorter bill.
• Note the plumage pattern: Barrow's has more black on the back and less white on the wings.
• Consider the habitat and range: Barrow's is more likely in mountain lakes and northwest coastal areas.

Size

Both species are similar in size, but Barrow's Goldeneye may appear slightly stockier due to its steeper forehead.

Plumage

Males of both species have black and white plumage, but Barrow's Goldeneye has a more pronounced black back with less white on the wings. Females are quite similar, though Barrow's Goldeneye females often have a darker head and a more contrasting white collar.

Behaviour

Both species are diving ducks and exhibit similar behaviors, such as diving for food and engaging in courtship displays. However, Barrow's Goldeneye may be more territorial during breeding.

Habitat

Common Goldeneye is more widespread and can be found in a variety of freshwater and coastal habitats. Barrow's Goldeneye has a more restricted range, often favoring mountain lakes and coastal areas in the northwest.

Voice

Vocalizations are not the most reliable distinguishing feature in the field, as both species have similar calls, though Barrow's Goldeneye may have a slightly higher-pitched call.