He was on the hunt. There was thousands of sounds in the forest, life everywhere. He was drawn to the biggest and most effective hunt, however. His senses were driving him wild as his snout raised into the air. He could tell there was a human in the woods. Young, female, alone.
He could see the woman up ahead, through the underbrush. His coat was pitch black so it was difficult to see him in the forest. All that was really visible in the night was his yellow eyes, piercing in the night.
He snarled as he leaped through the brush, enough force in his pounce to knock her down to the ground. Which was exactly what he did, his claws digging into her shoulders, slamming her into the dirt.