Hi everyone, thanks so much for looking. My poor cockatiel has been making squawking sounds and picking at the same spot on his wing. He turns around to his left and goes into the feathers on the top of his wing, sort of the equivalent of our shoulder blade, starts picking at it. I was wondering what he was up to so I put some water on the area and pushed the feathers back to find dried blood spots around the area!!! There’s no feather plucking except for the occasional loose feather like normal molting. No visible bald spots when the feathers aren’t wet and pushed back either. Can someone please help to identify what is going on? Should I be really concerned? Please help.. He’s 14 years old this year, a very happy bird, no behavioural issues, comes out to fly around a few times a day. He eats mainly pellets with dried fruit, some sunflower seeds, occasional bread and wheat snacks, lettuce and sometimes fruit.