Greater White-fronted Goose vs Pacific Diver

In short

The Greater White-fronted Goose and the Pacific Diver are easily distinguished by habitat and structure. The goose is a terrestrial bird often seen in flocks on land, whereas the diver is strictly aquatic, found on marine waters outside its breeding season.

Identification tips

1. Habitat: Look for geese on land and divers on water. 2. Structure: Geese are bulkier; divers are more streamlined. 3. Plumage: Geese have a white face patch; divers have a dark head and neck. 4. Behavior: Geese flock on land; divers dive in water. 5. Vocalization: Listen for the goose's high-pitched calls versus the diver's wails.

Size

The Greater White-fronted Goose is larger and bulkier than the Pacific Diver, which is more streamlined and elongated.

Plumage

The Greater White-fronted Goose has a distinctive white patch at the base of its bill and mottled brown body. In contrast, the Pacific Diver has a sleek, dark body with a white underside and lacks the white facial markings.

Behaviour

Greater White-fronted Geese are gregarious and often seen in large flocks, especially during migration and winter. Pacific Divers are more solitary or found in small groups, diving frequently for fish.

Habitat

Greater White-fronted Geese are found in grasslands, wetlands, and agricultural fields, while Pacific Divers are strictly marine outside the breeding season, nesting on freshwater Arctic ponds.

Voice

The Greater White-fronted Goose has a high-pitched, laughing call, while the Pacific Diver's call is a haunting wail, typically heard during the breeding season.