Hi, I'm about to leave for a wedding so I don't have much time but there's a young squirrel in my yard with blood running from his left ear. Looks like it may be dried blood. I don't know what happened to him. He was fine this morning so something must have happened within the last few hours. He normally hangs around my fenced-in backyard but today he ventured into the front yard so I'm worried he went out into the road or something. Does this look like a serious injury? He seems to be acting normally. Thank you!