Bill was pleased when Angelina stuck close to him, mostly because he would feel responsible if anything did happen to her while they were out in the woods. He felt responsible for all of them, it had been his idea to assemble all of them and he was the oldest and probably the best trained for this sort of thing. He was glad though, that Percy knew a good tracking spell, Bill didn't know them that well, he had only had to cast one once in his entire career as a curse breaker. He stepped in line close behind Percy, close on his heels in case something came at him.
When he heard the rustling he held his wand out, letting it light up the area in front of him, his eyes falling to where the noise was. It wasn't a pleasent sight. There was blood and a very dead looking Gryffindor in all of it. Bill got on his knee's next to Oliver, looking over him, checking to make sure that he was still alive. "Someone get his leg out of the trap and try and stop the bleeding." He said slowly, looking back up at the group.