Rook (also known as Eurasian Rook or Common Rook)

The Rook is a gregarious, intelligent black bird belonging to the crow family. It features all-black plumage glossed with brilliant purple-blue highlights, a distinctive pale greyish-white bare skin patch around the base of the adult's bill, and a slender, pointed bill adapted for probing soil for invertebrates.

Uniform glossy black with striking purplish-blue and violet structural iridescence under direct sunlight, typical of adult rook plumage.

Pennaceous at the upper exposed tip with tightly interlocked barbicels, transitioning to a semiplumulaceous or plumulaceous, soft, fluffy base.

Central rachis is moderately stout, black, curved slightly downward, tapering smoothly toward the tip with densely packed barbs along both sides.

Smooth, glossy, and silky with a high sheen; firm along the upper vane and soft and fluffy near the base.

Upper mantle or back, determined by the glossy black coloration and structural sheen typical of upper body contour feathers in corvids.

Intense blue-purple metallic iridescence on solid black background, characteristic of adult corvid contour feathers, paired with a soft fluffy base.

Agricultural lands, open countryside, pastures, cultivated fields, and occasionally open woodlands and parks.

Palearctic distribution, spanning across temperate Europe and across the Palearctic to eastern Siberia and parts of Asia.

Acts as an important agricultural regulator by consuming large quantities of pest insects, grubs, and weed seeds.

Carrion Crow (Corvus corone) and Common Raven (Corvus corax); distinguishing corvid feathers requires close attention to exact size, gloss tint, and structural proportions.

Rooks are exceptionally intelligent tool users and problem solvers, known for complex social structures and forming massive communal roosts in winter.

Featured frequently in European folklore and literature, often associated with countryside landscapes and rookeries; historically sometimes used in traditional fly tying.

Look near large communal nesting trees (rookeries) in agricultural regions during spring and autumn molt periods.

Good condition with intact barbs and minimal fraying or sun bleaching visible.