A cluster of crude stone dwellings stained with algae loomed suddenly out of the gloom on all sides. Here and there at the dark windows, Harry saw faces… faces that bore no resemblance at all to the painting of the mermaid in the prefects’ bathroom…
The merpeople had grayish skin and long, wild, dark green hair. Their eyes were yellow, as were their broken teeth, and they wore thick ropes of pebbles around their necks. They leered at Harry as he swam past; one or two of them emerged from their caves to watch him better, their powerful, silver fish tails beating the water, spears clutched in their hands.
-J.K. Rowling, Harry Potter and the Goblet of Fire
Trotting towards them were a dozen of the most bizarre creatures Harry had ever seen.
They had the bodies, hind legs and tails of horses, but the front legs, wings and heads of what seemed to be giant eagles, with cruel, steel-coloured beaks and large, brilliantly orange eyes. The talons on their front legs were half a foot long and deadly-looking. Each of the beasts had a thick leather collar around its neck, which was attached to a long chain, and the ends of all of these were held in the vast hands of Hagrid, who came jogging into the paddock behind the creatures.
-J.K. Rowling, Harry Potter and the Prisoner of Azkaban
A crimson bird the size of a swan had appeared, piping its weird music to the vaulted ceiling. It had a glittering golden tail as long as a peacock’s and gleaming golden talons, which were gripping a ragged bundle.
A second later, the bird was flying straight at Harry. It dropped the ragged thing it was carrying at his feet, then landed heavily on his shoulder. As it folded its great wings, Harry looked up and saw it had a long, sharp golden beak and beady black eyes.
-J.K. Rowling, Harry Potter and the Chamber of Secrets