How to do a Pigeon Stretch
On your fours, place a knee towards the same side's hand with the foot aimed to the opposite side. Shift your weight to the rear so that you are closer to the ground, aiming to be passively resting your weight on your legs. You should feel the stretch in your glutes and possibly in the inner thigh as well. If you can't rest your weight close enough to the ground, you can prop your knee and hips up with yoga blocks.
Muscles used in a Pigeon Stretch
Glutes, Adductors
Movement patterns used in a Pigeon Stretch
Miscellaneous