So I arrowed a big buck lastnight at 7. 21 yards and he didn't know I was there. He was quartering away and the arrow hit right behind the ribs. He jumped and then tried to run but his back legs wouldn't work so he tumbled 3 times and then was out of my sight. I gave him 30 and went looking for a trail of blood. Only blood I found was where he tumbled. It was dark blood with chunks of fat around the blood about the size of a marble. I searched till dark and then was back at 5 this morning but nothing. No more blood. Rocky ground so no tracks. Did circles away from the blood and tried walking all escape routes. How long do I have before the yotes and birds give his location away?