Gyrfalcon - Wikipedia
The gyrfalcon (/ ˈdʒɜːrˌfɔː (l) kən / or / ˈdʒɜːrˌfælkən /) [3] (Falco rusticolus), the largest of the falcon genus, is a bird of prey. The abbreviation gyr is also used. [4] It breeds on Arctic coasts and tundra, and the islands of northern North America and the Eurosiberian region.
矛隼（隼科隼属鸟类）_百度百科
矛隼（学名：Falco rusticolus），又名鹘鹰、海东青，是隼科隼属的鸟类。 矛隼为中等大小猛禽，体长54~61厘米，雄鸟体重为960~1304克，雌鸟体重为1396~2000克，翼展为1200~1350毫米。
海东青 - 维基百科，自由的百科全书
矛隼（学名： Falco rusticolus ），又名海东青、海青 [2] 、鹘鹰，是隼属猛禽中最大的一种，分布在北极以及北美洲、亚洲的广大地区，在中国原产于黑龙江、吉林等地。
Gyrfalcon | Arctic, Predator & Raptor | Britannica
gyrfalcon, (Falco rusticolus), Arctic bird of prey of the family Falconidae that is the world’s largest falcon. Confined as a breeder to the circumpolar region except for isolated populations in Central Asian highlands, it is sometimes seen at lower latitudes in winters when food is scarce.
Gyrfalcon | Audubon Field Guide
This formidable predator, the largest falcon in the world, reigns over barren tundra and desolate coasts in the high Arctic. There it preys mostly on large birds such as ptarmigan and waterfowl, overtaking them in powerful flight.
Gyrfalcon - Falco rusticolus - Birds of the World
2020年3月4日 · Largest of all falcons, and the most northern diurnal raptor, the Gyrfalcon inhabits circumpolar arctic and subarctic regions, with some individuals moving south into northern temperate zones during fall and winter.
Gyrfalcon - eBird
Stocky beast of a falcon; ranges in color from strikingly white to silvery-gray to dark sooty-brown. Relatively long tail and broad wings with powerful flight. Generally darker above and paler below, with markings on the belly ranging from small and crisp to big and chunky.
Gyrfalcon (Falco rusticolus) - iNaturalist
The gyrfalcon (/ˈdʒɜːrfɔːlkən/ or /ˈdʒɜːrfælkən/) is a bird of prey (Falco rusticolus), the largest of the falcon species. The abbreviation gyr is also used. It breeds on Arctic coasts and tundra, and the islands of northern North America, Europe, and Asia.
Gyrfalcon Overview, All About Birds, Cornell Lab of Ornithology
The largest falcon in the world, the ghostly Gyrfalcon is a fierce predator in the High Arctic, where it chases down ptarmigans in flight or plummets from the sky at breathtaking speeds to strike prey to the ground.
Gyrfalcon Life History - All About Birds
The largest falcon in the world, the ghostly Gyrfalcon is a fierce predator in the High Arctic, where it chases down ptarmigans in flight or plummets from the sky at breathtaking speeds to strike prey to the ground.