For those interested in this species, this is actually called a "Long-tailed tit". This particular one is of the caudatus subspecies, recognizable by its pure white head, like this
I heard that the bird actually tracked him down and murder him shortly after. They found the camera's SD card is the only thing still intact at the scene.
think of the bird's claw as a small torque wrench ... similarly, when we unscrew the cap of a jar, we notice that our hands have a limited torque capacity.