leviticus 11:18 And the swan, and the pelican, and the gier eagle, - Free Bible Online

      18. the swan--found in great numbers in all the countries of the Levant. It frequents marshy places--the vicinity of rivers and lakes. It was held sacred by the Egyptians, and kept tame within the precincts of heathen temples. It was probably on this account chiefly that its use as food was prohibited. MICHAELIS considers it the goose.
      the pelican--remarkable for the bag or pouch under its lower jaw which serves not only as a net to catch, but also as a receptacle of food. It is solitary in its habits and, like other large aquatic birds, often flies to a great distance from its favorite haunts.
      the gier eagle--Being here associated with waterfowl, it has been questioned whether any species of eagle is referred to. Some think, as the original name racham denotes "tenderness," "affection," the halcyon or kingfisher is intended [CALMET]. Others think that it is the bird now called the rachami, a kind of Egyptian vulture, abundant in the streets of Cairo and popularly called "Pharaoh's fowl." It is white in color, in size like a raven, and feeds on carrion; it is one of the foulest and filthiest birds in the world. [See on De 14:17.]

JFB.