The … Many birds are clearly intermediate between the parent species, but other hybrids are more subtle. The Glaucous-winged Gull is a large, pale gull of Pacific shorelines. The darker the color, the more favorable the climate conditions are for survival. Because hybrids span the range of characters between parental types it is difficult to establish where a pure Glaucous-winged Gull or Western Gull ends and a hybrid begins (Bell 1996). The outlined areas represent approximate current range for each season. Title Glaucous-Winged Gull Range - CWHR B221 [ds1498] Publication date 2016-02-0100:00:00 Presentation formats digital map FGDC geospatial presentation format vector digital data Other citation details These are the same layers as appear in the CWHR System software. Dispersal and Site Fidelity. The Glaucous-winged Gull is a large, pale gull of Pacific shorelines. The typical large gull of the northern Pacific Coast, nesting mainly from southern Alaska to Washington. A big, pale, ghostly gull of the far north. Glaucous-winged Gull Goéland à ailes grises Larus glaucescens Information, images and range maps on over 1,000 birds of North America, including sub-species, vagrants, introduced birds and possibilities. The only large gull common in the high Arctic, although a couple of small gulls are successful there as well. The outlined areas represent approximate current range for each season. Large, stocky gull found in coastal areas, including towns and cities. A big, pale, ghostly gull of the far north. Migration Overview. Glaucous-winged Gull. It is a resident from the western coast of Alaska to the coast of Washington.It also breeds on the northwest coast of Alaska, in the summertime and in the Russian Far East.During winter, they can be found along the coast of California, Oregon, Baja California, Baja California Sur, and Sonora. Although generally an inshore species, it does venture away from the coast where it … Western Gulls, Glaucous Gulls, Slaty-backed Gulls, and Herring Gulls all hybridize with Glaucous-winged Gulls, making the population of individual species somewhat difficult to determine. The only catch is that they often hybridize with Western, Glaucous, and Herring Gulls, complicating identification. The population of the Glaucous-winged Gull is believed to exceed half a million individual birds. The Glaucous-winged Gull has a current classification of Least Concern. Large, stocky gull found in coastal areas, including towns and cities. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research … Common all along the Pacific Coast in winter, it very rarely strays any distance inland.
At various times it may fill the role of either predator or scavenger. Range Size (-10 to 10) Population Concentration (-10 to 10) Based on colony counts, there are approximately 252,000 Glaucous-winged Gulls at 825 colonies in Alaska (USFWS 2006a). Year-round resident in coastal areas from Cape Romanzof south through southeast Alaska. It’s relatively easy to pick out from other gulls—most species have black wingtips, but adult Glaucous-winged Gulls have pearly gray wingtips that match the color of the rest of the back and upperwing. The outlined areas represent approximate current range for each season. More on reading these maps. Habitat in Nonbreeding Range. But it also hybridizes with the Glaucous Gull in Alaska and Commander Islands, and with the Slaty-backed Gull on the coasts of Kamchatka and Commander Islands, Russia. presumed American Herring Gull x Glaucous-winged Gull hybrid, Larimer County Landfill (Colorado, USA), 1st December 2014 - copyright Steve Mlodinow The Glaucous-winged Gull is the most abundant and widespread gull in Washington.