Rook (Corvus frugilegus) with a dark background. The bird displays glossy black plumage with hints of blue and purple iridescence. Its strong, conical black bill stands out, typically associated with its probing and digging behavior. The facial skin around the base of its bill appears bare, characteristic of mature rooks. Feathers are neatly arranged, accentuating the bird's streamlined shape. The dark, neutral backdrop highlights the bird's features, emphasizing its sleek contour and the subtle textures of its feathers.
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