A tree shears gripper (1) comprises a clamp (10) designed for gripping tree trunks, a cutting device (11) designed to cut a trunk and a supporting structure (2) for the clamp (10) and the cutting device (11).The clamp (10) is movable between a first operating position and a second operating position, in which it has different inclinations relative to the supporting structure (2).The gripper (1) comprises means (13, 40, 41, 42, 43) for moving the clamp (10) designed to move the clamp (10) between the first and second operating positions by means of a roto-translational movement.
