Ross’s Goose

Identification

Ross's goose is a compact white goose distinguished by black wingtips and a notably short neck. It is the smallest of the three white geese that breed in North America, approximately 40% smaller than the similar white-phase snow goose. The most reliable field marks separating it from snow geese are its proportionally smaller bill and the absence of "black lips." Adult males measure 23.2–25.2 inches in length with wingspans of 44.5–45.7 inches, while females average about 6% smaller. The bill is short and triangular with a bluish base featuring warty structures that become more prominent with age. Adults show all-white secondary feathers, whereas juveniles have dark-centered secondaries. Legs transition from olive gray in goslings to deep red in mature birds. A rare blue morph exists but accounts for less than 0.01% of adult birds.

Range & Habitat

Ross's geese breed in the central Canadian Arctic, primarily on islands in shallow lakes and adjacent mainland. Their nesting habitat consists of flat tundra plains with rock outcrops and drumlins, featuring wet meadows and marshy vegetation including patches of dwarf birch, willow, grasses, sedges, and low-growing plants such as crowberry, Lapland rosebay, and lousewort. The species migrates seasonally, departing breeding grounds by mid-October and returning from mid-April through May in response to food availability and freezing temperatures.

Behaviour & Diet

Like most geese, Ross's geese are grazers that feed on grasses, sedges, and small grains. They frequently forage in large, mixed flocks alongside snow geese. Ross's geese form extensive breeding colonies where females build ground nests from twigs, leaves, grass, moss, and down. Each female typically lays an average of four eggs, incubating them for 21–23 days. Large nesting colonies can cause significant vegetation damage through overgrazing.

Best Time & Places to See It

The McConnell River region on the west coast of Hudson Bay supports substantial populations, with studies documenting approximately 81,000 nesting birds in this area. Visitors should plan for the breeding season when birds occupy Arctic nesting grounds, or observe migrants during spring (mid-April through May) and fall (by mid-October) movements. The species' dramatic recovery from near-extinction makes it an increasingly accessible Arctic species for dedicated travellers.

Photography Tips

Photograph Ross's geese in their Arctic breeding colonies during summer months to capture nesting behavior and family groups. The birds' pure white plumage contrasts beautifully against tundra landscapes and dark water. During migration periods, look for mixed flocks with snow geese to capture comparative size differences. The subtle field marks—particularly the small bill and absence of black lips—require close-range photography to distinguish from similar species. Early morning and late evening light enhance the brilliance of their white plumage against the Arctic landscape.