AT A GLANCE
Common Name: Ross’s Gull
Scientific Name: Rhodostethia rosea
Category: Birds
Subcategory: Laridae & Gulls
Size: Length: 11.5–13.0 in (29–33 cm); Wingspan: 31–35 in (80–90 cm)
Weight: 5.0–8.8 oz (140–250 g)
Lifespan: 10–18 years in the wild
Diet: Carnivore / Pelagic surface-feeder (small fish, amphipods, dipteran insects, and marine plankton)
Habitat: Treeless Arctic tundra deltas during summer; drifting polar sea-ice edges during winter
Range: Circumpolar Arctic Ocean, breeding in subarctic Siberia, northern Canada, and Greenland
Conservation Status: Least Concern (IUCN Red List / Highly Protected in Canada and US)

Overview

Ross’s Gull (Rhodostethia rosea) is an elusive, delicate seabird of the High Arctic, celebrated worldwide for its buoyant, buoyant flight and breathtaking rose-pink breeding plumage. Named in honor of the British Arctic explorer Sir James Clark Ross, this small gull spends the majority of its life far out at sea among drifting polar pack ice. Breeding in isolated wet tundra marshlands across northern Siberia and subpolar North America, Ross’s Gull remains one of the most romanticized and rarely observed avian species in polar ornithology.

Biology and Physical Characteristics

Rhodostethia rosea displays an unmistakably delicate profile characterized by a small, slender black bill, bright coral-red legs, and a distinctive wedge-shaped tail. In adult breeding plumage, the bird exhibits a soft, pale-gray back and wings contrasted against a luminous pastel-pink wash across the entire breast and abdomen, synthesized through dietary carotenoids derived from high-latitude marine amphipods. A narrow, neat ring of jet-black feathers encircles the neck like an exquisite necklace. Its long, pointed wings and buoyant body allow it to execute agile, tern-like aerial maneuvers above breaking sea ice.

Behavior and Ecology

During the brief Arctic summer, Ross’s Gulls breed in small, loose colonies in swampy river deltas and wet mossy tundra, constructing shallow scrape nests lined with dry sedges and reindeer lichen. Both parents share the incubation of two to three olive-spotted eggs. Once chicks fledge, the birds migrate not south toward temperate waters, but north into the frozen Arctic Ocean, spending the harsh polar winter foraging along open leads (polynyas) in the pack ice. They feed by dipping down to snatch floating amphipods, arctic cod, and small crustaceans from the surface, often following polar bears to scavenge scraps.

Conservation and Human Impact

Ross’s Gull is currently evaluated as Least Concern by the IUCN, with a global population estimated between 25,000 and 100,000 individuals. Because of its remote, high-latitude distribution, the species faces minimal direct human persecution. However, rapid Arctic climate change represents an acute long-term challenge: the progressive retreat and thinning of multi-year pack ice disrupts the specialized polar food web that sustains the species during winter. International polar conservation agreements safeguard its Siberian and Canadian breeding sanctuaries.

Interesting Factoid

Unlike most Arctic birds that fly south to escape polar winters, Ross’s Gulls do the reverse: after breeding, they fly north directly into the freezing Arctic Ocean, wintering in leads between massive shifting polar pack ice floes.

Last updated: October 2026