“And he shall sprinkle of the blood of the chatas” — from the body of the chatas itself. He holds the head and the body and sprinkles; he does not collect the blood in a vessel and sprinkle with a finger alone.
Type of Learning: Diyuk of “midam ha-chatat”: the blood is taken from the bird’s body in the act of squeezing, not drawn into a mizrak as with animal blood.
What Is Learned: Hazayah of the bird-chatas is performed by the kohen grasping the bird and directing its blood onto the altar wall. The procedure is direct from the bird, not via a separate blood vessel.