Saker Falcon

The Saker Falcon is one of the largest true falcons, breeding across the steppes and semi-deserts of Central Asia and eastern Europe and wintering into the Middle East, South Asia, and East Africa. Its build is powerful and broad-shouldered compared to smaller falcons, reflecting a hunting style built around stamina and open-ground pursuit of ground squirrels and birds.

Feathers from this species turn up mainly near cliff nest sites, pylons, or open plains where the bird perches and hunts. Because Sakers vary considerably in tone from pale sandy to darker brown morphs, feather color alone can be misleading without size as a cross-check.

Recognizing Saker Falcon feathers

• Flight feathers: Long, pointed primaries, brown above with narrow, somewhat indistinct pale barring — less crisply banded than a Peregrine's.
• Tail feathers: Squared-off, brownish with faint darker banding and a pale terminal band.
• Body feathers: Back and covert feathers pale sandy-brown to grey-brown; underside contour feathers cream to buff with brown streaks or teardrop spotting rather than heavy barring.
• Shaft color: Pale brown to horn-colored.
• Compared to similar species: Larger and paler overall than a Peregrine Falcon, with less bold facial-mask-associated barring; smaller and less richly rufous than a Gyrfalcon; Lanner Falcon feathers are similarly toned but the Lanner is noticeably smaller with finer streaking below.

Adults are sandy-brown to grey-brown above, variably darker in some individuals, with a faint pale crown stripe and weak mustache mark compared to other falcons. Underparts are cream to whitish with brown streaking that is heavier on the flanks. Juveniles are darker brown above with heavier, more solid streaking below than adults, gradually paling with successive molts over a few years to reach adult patterning.

Breeds on cliffs, crags, and even large stick nests of other birds across open steppe, semi-desert, and grassland from eastern Europe through Central Asia to Mongolia and northern China. A partial migrant: northern and Central Asian populations move south for winter into the Middle East, the Indian subcontinent, and parts of northeastern Africa, while some southern populations are largely resident.

Hunts over open ground, taking ground squirrels, gerbils, and other small mammals as well as birds, often by fast low pursuit or stooping from height. Nests on cliff ledges or in old nests of other large birds such as corvids or eagles, typically laying in spring. Largely silent away from the nest, giving harsh cackling calls when alarmed near the eyrie. A feather found on open steppe or near a rocky outcrop, sandy-toned with faint barring and larger than a typical kestrel feather, is a reasonable candidate for this species within its range.