πῡ́γ-αργος,ὁ,
A. white-rump, name of a kind of antelope, Hdt. 4.192 , LXX De. 14.5 , Ael. NA 7.19 .
II. a kind ofeagle, perh.Circus cyaneus, Arist. HA 618b19 ; opp.ὁ μελάμπυγος, Archil. 189 , cf. Lyc. 91 (et ibi Sch.): metaph. of a coward, S. Fr. 1085 .
III. a water-bird, perh.dipper, Cinclus aquaticus, Arist. HA 593b5 .