The existing genera include Anas, Aquila, Bubo, Columba, Cypselus, Lanius, Picus, Phalacrocorax, Sula, &c. Very interesting is the fact that Serpentarius, Psittacus and Trogon are amongst this list of birds, which are now restricted to the tropics.
Anser, Anas, Cygnus, since Miocene.
GUADIANA (anc. Anas, Moorish Wadi Ana), a river of Spain and Portugal.
Boscades - Anas; b.
" Canards "-Anas, Linn.
How would you define anas? Add your definition here.