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Gyrfalcon

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Conservation

Scientific name:  Falco rusticolus
Family Name:  Falconidae

Are they endangered? No, they are not endangered worldwide.  They were near threatened in 1988 but not now. (IUCN Red list: Least concern) 

What are their past/present problems?  They don’t have any natural enemies.  Their numbers are threatened by people capturing them, taking them from their home areas, and selling them for falconry.

What do they look like?  There are three kinds of Gyrfalcon.  They are gray, dark brown, or white.  All of them have a curved beak.  The white kind (white morph) are white with brown spotting.  The brown ones and the gray ones have white spots and lighter colored chests and bellies with brown spots.

Gyrfalcon

How big are they?  They are about 2 feet long.  If their wings were spread out, they would stretch to about 4 to 4 feet wide.

How many eggs do they lay?  Females lay between 3 and 6 light yellow eggs once a year.  The eggs hatch in 5 weeks.

How long do the fledglings stay in the nest?  They like to make their nests in holes or ledges in the rock of a mountain.  They like places where there is a ‘roof’ of rock to keep them dry.  Sometimes they will use stick nests that were made by other birds.  The young birds leave the nest in about 7 to 8 weeks.

When do they hunt?  They hunt during the day. (diurnal)

What do they eat?  They like to eat grouse which is a wild bird that is like a chicken.  Gyrfalcons also eat ground squirrels and lemmings which are MICE!

Where do they live?  Gyrfalcons live in Canada, the United States, Mexico, China, Denmark, Sweden, Iceland, Norway, and Finland.  They like Arctic areas.

What kind of place do they like to live in?  They like swamps, treeless plains, areas with pine trees, mountains, and by bodies of water.  They like to be in places that are away from people.

Interesting facts:
They fly up to 130 miles per hour when catching prey.

In the Middle Ages, the king was the only person allowed to hunt with the Gyrfalcon.  Nowadays, in parts of the Arctic, the numbers are going down because the young birds are taken away to use for falconry.  

Sometimes they will save dead prey until they need it to eat later.


Works Cited:

Alsop, Fred.  Birds of North America.  New York:  DK Publishing, 2001.

Falco rusticolus.  14 Jan. 2008.  <http://www.iucnredlist.org/search/details.php/49516/all>.

Gyrfalcon.  18 Jan. 2008.  <http://sdakotabirds.com/species/gyrfalcon_info.htm>.

Gyrfalcon.  5 Oct. 2007.  <http://www.peregrinefund.org/Explore_Raptors/falcons/gyrfalcn.html>.

“Plummeting falcons stay in control.”  Science News.  11 Jul 1998. 


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Gross facts
Gyrfalcons catch their prey, take it back to the nest, bite off its head, pull all its feathers out (if it’s a bird), and then eat the body.  YUCK!


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