An upward-angled photograph depicts a black-furred squirrel ascending the trunk of a mature deciduous tree in Sofia, Bulgaria

An upward-angled photograph depicts a black-furred squirrel ascending the trunk of a mature deciduous tree in Sofia, Bulgaria. The squirrel is positioned on the right side of the vertical tree trunk, with visible claws gripping the rough, textured brown bark. Its head is oriented towards the upper right, appearing to look at a cluster of bare branches. The background features a clear blue sky in the upper left quadrant. Towards the upper and mid-right, a light-colored, multi-story building with multiple windows is visible through a dense network of leafless tree branches, indicating an urban setting. Additional blurred bare branches and faint indications of distant evergreen foliage are present.