actually, looking at some pictures I'm going to drop trumpeter on account of the white eye-liddy bit visible in this photo and go with either tundra (whistling) or Jankowski's. I do like the name "Jankowski's swan", and the photo on Zootierliste is by a certain Mr. Writhedhornbill which gives it a Zoochat association which makes me think I must agree with Ituri and say: