Male, hind leg, femur, size
Clearly SWOLLEN to somewhat swollen - Femur length 1.5 to 3.0 times the width
This can be measured by comparing the width of the femur to its length. A swollen, or slightly swollen, femur will to be 1.5 to, just under, 3x long as wide. A slender femur will be 3x, or more, long as wide.