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Related to gyrfalcon: peregrine falcon


, gerfalcon
a very large rare falcon, Falco rusticolus, of northern and arctic regions: often used for hunting



(Faleo gyrfalco), a bird of the family Falconidae, order Falconiformes. Body length, 50-60 cm. Male’s weight, up to 1.5 kg; female’s, up to 2 kg. The plumage is gray, or white with gray markings. The gyrfalcon is distributed in Northern Europe, Asia, and North America. It lives on rocky seacoasts and in forest tundra. Gyrfalcon mates stay together for many years. They nest on rocks, steep shores, or high trees. There are three to five brownish eggs with red spots in each clutch, which are incubated mainly by the female for 28-29 days. The young leave the nest at about two months. Gyrfalcons feed mainly on birds that they capture on the wing; more rarely they catch lemmings, voles, and hares. Gyrfalcons were highly prized as hunting birds in falconry. They are scarce everywhere and need to be protected.

References in periodicals archive ?
Two separate virus strains were identified: H5N2 in northern pintail ducks and H5N8 in captive gyrfalcons that were fed hunter-killed wild birds.
The gyrfalcon can be aggressive to the point of "demonic," as some falconers describe her.
Possessed' is a tribute to the gyrfalcon whose significance permeates the sonnets and whose attributes the poet admires.
The accoutrements include a gyrfalcon, the biggest falcon in the world, which Highbury has obtained from the Little Theatre Guild of Great Britain and when it is finished with it will be passed on to another group, also called the Highbury Players, but based in Cosham, near Portsmouth.
This micro-nursery and arboretum can be toured by appointment by contacting Craig Gyrfalcon Thiessen.
A falcon like Luke, a foot-tall, cream-color peregrine and gyrfalcon mix, will soar thousands of feet in the air to eye its prey.
A GYRFALCON from Greenland has been spotted on the rugged Cornish coast.
The answer certainly surprised researchers at Duke University in Durham, North Carolina, who tracked the diving speeds of a tame gyrfalcon (JER-falkon), an Arctic falcon named Kumpan.
New techniques of measurement are revealing how a gyrfalcon sky dives without ending up as a splat of feathers.
Other falcons found in North America kestrel and the gyrfalcon (JIE-uhr-fal-kuhn).
The knowledge I gained when I assisted in the development of the first ever 15,000-psi subsea tree (for the Gyrfalcon project in 2000) is just one asset that will help me lead Azura Offshore into the future.
In a related event, on December 6, 2014, an American wigeon was captured and partially consumed by a captive-reared gyrfalcon (Falco rusticolus) in Whatcom County, [approximately equal to] 8 km from Wiser Lake.