See the user build section for builds using this weapon.
When equipping the Kestrel, the player can throw it and then press the channeling button to detonate the Kestrel, dealing high AoE damage and returns to the player immediately. This is true for all thrown melee weapons.
It can explode in this manner when not equipped and thrown, but the explosion timing cannot be controlled and will often damage the user in close quarters.
Can be used to instant-kill most bosses by flinging them into a pit while ragdolled. Loot can be found where they last stood. (Possibly a bug)
When used on a boss they can be permanently stunlocked if a Dethcube is firing at it, causing it to reset the recovery animation. This is fixed by shooting him directly.
Can hit, theoretically, infinite targets on return.
When not in use, the Kestrel sheaths under your right arm.
Ragdolled enemies' health and shield bars are also concealed while ragdolled. Although they usually display damage indicators while ragdolled, sometimes they will not display if you are not the host - giving the impression that the enemy is invulnerable (not the case).
Sometimes it will continuously fly around its user in a circular path indefinitely after bouncing off at least 2 objects, such as two adjacent walls, if the user stands back and stays still afterwards. (Possibly intended but its exact mechanics are unknown, however, Rebound and Whirlwind were installed when this was discovered.)
The Kestrel is a carnivorous bird in the falcon family known for hovering.
The Kestrel shares the same sheath style with the other thrown melee weapons, where they retract and attach under the right arm.