Hardhead

Here the details of the Hardhead named bird below:

SCI Name:  Aythya australis
Protonym:  Nyroca australis Monogr.Anatidae p.160
Taxonomy:  Anseriformes / Anatidae / Aythya
Taxonomy Code:  wheduc1
Type Locality:  Australia = New South Wales.
Author:  Eyton
Publish Year:  1838
IUCN Status:  Least Concern

DEFINITIONS

AYTHYA
(Anatidae; Ϯ Greater Scaup A. marila) Gr. αιθυια aithuia  unidentified seabird mentioned by Aristotle, Hesychius, and other authors. In modern times associated with a variety of seabirds, including a shearwater, a cormorant, a duck, and an auk (cf. Gr. myth. Thyr or Thyrie, mother of Cygnus, who was changed into a waterbird); "130. Aythya marila. — Anas marila Lin." (Boie 1822); "Aythya Boie, 1822, (before May), Tagebuch Reise Norwegen, p. 351. Type, by monotypy, Anas marila Linnaeus." (Johnsgard in Peters, 1979, I, ed. 2, p. 482).   
Var. Aethyia, Aethyja, Aithyia, Aithya.   
Synon. Aristonetta, Dyseonetta, Fuligula, Fulix, Glaucium, Hydrobates, Ilyonetta, Marila, Nettarion, Nyroca, Penelope, Perissonetta, Zeafulix.

australe / australis
L. australis  southern  < auster, austri  south.
● Tierra del Fuego; ex “Thorn-tailed Warbler” of Latham 1783 (syn. Aphrastura spinicauda).
● Cayenne; ex “Southern Sandpiper” of Latham 1785 (?syn. Calidris canutus).
● Erroneous TL "Friendly Islands" (= Tasmania); ex "South-Sea Raven" of Latham 1781 (syn. Corvus coronoides).
● Erroneous TL. New Guinea (= Luzon, Philippines); ex “Manikor de la Nouvelle Guinée” of de Buffon 1770-1783 (Dicaeum).
● Australia; ex “New Holland Snipe” of Latham 1801 (syn. Gallinago hardwickii).
● Australia; ex “Pacific Paroquet (var.)” of Phillip 1789 (syn. Glossopsitta concinna).
● Australia; ex “New Holland Pelican” of Latham 1824 (syn. Pelecanus conspicillatus).
● Australia; ex “Cold-river Goatsucker” of Latham 1823 (syn. Podargus strigoides).
● Australia; ex “New Holland Quail” of Latham 1802 (Synoicus).
● Tasmania; ex Brown MS (syn. Lathamus discolor).
● Dusky Sound, New Zealand (syn. Nestor meridionalis).
● Staten I., off Tierra del Fuego (= Isla de los Estados, Argentina); ex “Statenland Eagle” of Latham 1781 (Phalcoboenus).
● Christmas I.; ex "Southern Tern" of Latham 1785 (syn. Procelsterna caerulea) (so identified by Stresemann 1950).
● Kerguelen I.; ex “Southern Tern” of Latham 1785 (?syn. Sterna vittata).
● Madagascar; ex “Palumbus viridis Madagascariensis” of Brisson 1760 (Treron).
● Erroneous TL. Sandwich Is. (= Samoa); ex “Blue-crested Parrakeet” of Latham 1781 (Vini).
● Tierra del Fuego; ex “Rusty-collared Finch” of Latham 1783 (subsp. Zonotrichia capensis).