Waterfowl are numerous and the forests of the warm valleys are filled with song-birds and birds of beautiful plumage.
Fish abound, as do waterfowl, crocodiles and, in the southern swamps, hippopotami.
Long, crowded by waterfowl not known before in that desert country.
Waders and waterfowl are far less abundant, and those occurring are nearly all migratory forms which visit the peninsula of India - the only important exception being two kinds of solitary snipe and the red-billed curlew.
Southward, the Danube encircles a vast fen, tenanted only by waterfowl and herds of half-wild swine, while the plain which extends to the north-east and east only grows fertile at some distance inland.