- Saker Falcon
Taxobox
name = Saker Falcon
image_width = 240px
status = EN
status_system = iucn3.1
regnum =Animal ia
phylum =Chordata
classis =Aves
ordo =Falconiformes
familia =Falconidae
genus = "Falco"
subgenus = ("Hierofalco ")
species = "F. cherrug"
binomial = "Falco cherrug"
binomial_authority = Gray,1834
range_
range_map_width = 240px
range_map_caption = Range of the Saker Falcon. Yellow = breeding Blue = wintering Green = all-year
synonyms ="Falco altaicus" (Menzbier,1891 )
"Hierofalco altaicus" Menzbier, 1891The Saker Falcon ("Falco cherrug") is a very large
falcon . This species breeds from easternEurope eastwards acrossAsia toManchuria . It is mainly migratory except in the southernmost parts of its range, wintering inEthiopia , theArabian peninsula , northernIndia ,Iran and westernChina .Description and systematics
The Saker Falcon is a large
hierofalcon , larger than the Lanner Falcon and almost as large asGyrfalcon at 47-55cm length with a wingspan of 105-129cm. Its broad blunt wings give it a silhouette similar to Gyrfalcon, but its plumage is more similar to aLanner Falcon 's.Saker Falcons have brown upperbellies and contrasting grey flight feathers. The head and underparts are paler brown, with streaking from the breast down.
Male s (called sakrets infalconry ) andfemale s are similar, as are young birds, although these tend to be a duller brown. The call is a sharp "kiy-ee".Adults can be distinguished from the similar
Lanner Falcon since the Lanner is blue-grey above with a reddish back to the head. However, juveniles of the two species can be very similar although the Saker Falcon always has a uniformly buff top of the head with dark streaks, and a less clear pattern on the sides of the head.A further complication is that some Asian birds have grey barred upperparts; these must be separated from Lanner on size, structure, and a weaker moustache stripe. Saker Falcons at the northeast edge of the range in the
Altay Mountains are slightly larger, and darker and more heavily spotted on the underparts than other populations. These, known as the Altai Falcon, have been treated in the past either as a distinct species "Falco altaicus"" or as a hybrid between Saker Falcon and Gyrfalcon, but modern opinion (e.g. Orta 1994) is to tentatively treat it as a form of Saker Falcon, until comprehensive studies of itspopulation genetics andecology are available.Unfortunately, this
species belongs to the close-knit hierofalcon complex. In this group, there is ample evidence for rampant hybridization and incompletelineage sorting which confounds analyses ofDNA sequence data to a massive extent; molecular studies with smallsample size s can simply not be expected to yield reliable conclusions in the entire hierofalcon group. The radiation of the entire living diversity of hierofalcons seems to have taken place in theEemian interglacial at the start of theLate Pleistocene , a mere 130,000-115,000 years ago; the Saker Falcon represents a lineage that expanded out of northeasternAfrica into the interior of southeastern Europe and Asia, by way of the easternMediterranean region. [Helbig "et al." (1994), Wink "et al." (1998), Wink "et al." (2004), Nittinger "et al." (2005)]Probably the saker falcon (Kerecsensólyom) was the Hungarian mythological bird, the
Turul . [ [http://www.savethesaker.com/images/falco17.pdf Laszlo Molnar: Saker Falcon protection in Eastern Europe] ]Ecology and status
The Saker Falcon is a
bird of open grassland with some trees. It is acarnivore , usually hunting by horizontal pursuit, rather than the Peregrine's stoop from a height, and feeds mainly onrodent s and more rarely birds. This species usually builds no nest of its own, but lays its 3-6 eggs on the ground or in an old stick nest in a tree which was previously used by other large birds such as crows, ravens or buzzards. However, it is known to have occasionally laid eggs in nests built on cliffs.BirdLife International categorises this bird asendangered , due to a rapid population decline, particularly on the central Asian breeding grounds. The species faces pressure from habitat loss and destruction. The population was estimated to be between 7,200 and 8,800 mature individuals in 2004. In the United States there are severalcaptive breeding projects. There are currently several successful breeding projects by falconers in Canada. The most dramatic decline of the Saker falcon in Asia has been in Kazahkstan and Uzbekistan.In culture
Saker Falcon is the national bird of
Hungary , known asTurul in the hungarian mythology.Footnotes
References
*|year=2004|id=49515|title=Falco cherrug|downloaded=11 May 2006 Database entry includes a range map, a brief justification of why this species is endangered, and the criteria used
* (1994): Phylogenetic relationships among falcon species (genus Falco) according to DNA sequence variation of the cytochrome b gene. "In:" aut|Meyburg, B.-U. & Chancellor, R.D. (eds.): "Raptor conservation today": 593-599. [http://www.uni-heidelberg.de/institute/fak14/ipmb/phazb/pubwink/1994/4.%201994.pdf PDF fulltext]
* (2005): Out of Africa? Phylogenetic relationships between "Falco biarmicus" and other hierofalcons (Aves Falconidae). "Journal of Zoological Systematics and Evolutionary Research" 43(4): 321-331. doi|10.1111/j.1439-0469.2005.00326.x [http://www.uni-heidelberg.de/institute/fak14/ipmb/phazb/pubwink/2005/28.2005.pdf PDF fulltext]
*, Jaume (1994): 57. Saker Falcon. "In:" aut|del Hoyo, Josep; Elliott, Andrew & Sargatal, Jordi (eds.): "Handbook of Birds of the World , Volume 2: New World Vultures to Guineafowl": 273-274, plate 28. Lynx Edicions, Barcelona. ISBN 84-87334-15-6
* (2005): Weichselian and Holocene bird remains from Komarowa Cave, Central Poland. "Acta zoologica cracoviensia" 48A(1-2): 43-65. [http://www.ingentaconnect.com/search/download?pub=infobike%3a%2f%2fisez%2fazc%2f2005%2f00000048%2fF0020001%2fart00005&mimetype=application%2fpdf PDF fulltext]
* (1998): Molecular systematics of holarctic raptors (Order Falconiformes). "In:" aut|Chancellor, R.D., Meyburg, B.-U. & Ferrero, J.J. (eds.): "Holarctic Birds of Prey": 29-48. Adenex & WWGBP. [http://www.uni-heidelberg.de/institute/fak14/ipmb/phazb/pubwink/1998/31.%201998.pdf PDF fulltext]
* (2004): Phylogenetic relationships in the Hierofalco complex (Saker-, Gyr-, Lanner-, Laggar Falcon). "In:" aut|Chancellor, R.D. & Meyburg, B.-U. (eds.): "Raptors Worldwide": 499-504. WWGBP, Berlin. [http://www.uni-heidelberg.de/institute/fak14/ipmb/phazb/pubwink/2004/27.2004.pdf PDF fulltext]External links
* [http://www.birdlife.org/datazone/search/species_search.html?action=SpcHTMDetails.asp&sid=3619&m=0 BirdLife International Species Factsheet]
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