Illustration © David Allen Sibley.
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Text © Kenn Kaufman, adapted from
Lives of North American Birds
Photo: Ed Schneider/Electronic Collection of Georgia Birds/Flickr Creative Commons
Ivory Gull
Pagophila eburnea
| Conservation status | Has declined at nesting areas at Spitsbergen (north of Norway) and probably at a few other spots, but North American population and trends difficult to determine. Climate change and reduction of pack ice in Arctic are likely to cause further declines. |
|---|---|
| Family | Gulls and Terns |
| Habitat | Arctic Ocean, barren northern coasts. Usually around edges of floating ice at sea, also along shores of northern islands in vicinity of pack ice. Rarely farther south along coast, and very rare inland in winter. Nests on cliff ledges, bare rocky ground. |
Photo Gallery
Feeding Behavior
Does much of its feeding while walking on ice or beach. Forages in flight by dipping to surface of water; sometimes forages by swimming or wading.
Eggs
1-2, rarely 3. Buff to olive, blotched with dark olive, brown, or black. Incubation is by both sexes, roughly 24-26 days. Young: Both parents feed young, and brood them while they are small. Young remain in nest until ready to fly; age at first flight not well known, but at least 5 weeks.
Young
Both parents feed young, and brood them while they are small. Young remain in nest until ready to fly; age at first flight not well known, but at least 5 weeks.
Diet
Carrion, small marine life. Diet includes small fish, crustaceans, insects. Often is primarily a scavenger, feeding on carrion (including kills left by polar bears) and on the droppings of walrus, seals, polar bears, and others. May feed on refuse around northern coastal towns.
Nesting
Usually breeds in colonies. Courtship displays include long calls, tossing head back so that bill points up, lowering head and doing "choking" movements. In courtship feeding, male regurgitates to feed female. Nest site is usually on cliff ledge, either coastal or inland; may be on flat rocky ground. Has been found nesting on patches of rock imbedded in floating icebergs. Nest (built by both sexes) is usually a bulky mound of seaweed, mud, debris, with shallow depression at top; sometimes little or no nest built.
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Songs and Calls
A harsh eeeer.How Climate Change Will Reshape the Range of the Ivory Gull
Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect this bird’s range in the future.
Zoom in to see how this species’s current range will shift, expand, and contract under increased global temperatures.
Climate threats facing the Ivory Gull
Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.
Ivory Gull In the News More News
Science
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To justify its position, the agency is choosing to blatantly disregard the health impact to humans and wildlife, critics warn.
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