This area overlaps with the much larger breeding area of the saker falcon Falco cherrug. It appears that Altai falcons are either natural hybrids between sakers and gyrfalcons Falco rusticolus , or rather the descendants of such rare hybrids backcrossing into the large population of sakers. So far, molecular genetic studies cannot prove or falsify the hybrid hypothesis. Gyrfalcons are rare winter vagrants to the Altai falcon's range.
The high altitude cold grasslands of the region constitute habitat intermediate between typical saker habitat temperate lowland steppes and typical gyrfalcon habitat arctic tundra. These two species of falcons also easily hybridise in captivity.
Bloomsbury Collections - The Gyrfalcon
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The Gyrfalcon Eugene Potapov and Richard Sale Poyser Preview Only The full text of this book is only available to members of institutions that have purchased access. Potapov, E. The Gyrfalcon Poyser Monographs.
London: Poyser. Potapov, Eugene, and Richard Sale.
The Gyrfalcon. London: Poyser, Poyser Monographs. Bloomsbury Collections. Accessed November 18,
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