New Zealand Grebe

Here the details of the New Zealand Grebe named bird below:

SCI Name:  Poliocephalus rufopectus
Protonym:  Podiceps (Poliocephalus) rufopectus Trav.N.Z.[Dieffenbach] 2 p.198
Taxonomy:  Podicipediformes / Podicipedidae / Poliocephalus
Taxonomy Code:  nezgre1
Type Locality:  North Island, New Zealand.
Author:  Gray, GR
Publish Year:  1843
IUCN Status:  Near Threatened

DEFINITIONS

POLIOCEPHALUS
(Podicipedidae; Ϯ Hoary-headed Grebe P. poliocephalus) Specific name Podiceps poliocephalus Jardine & Selby, 1827. "FAM. COLYMBIDÆ.   Genus Podiceps. LATH.  ...  Pod. (Poliocephalus, SELBY) (1) Nestor.  Australia.  ...  (1) Mr. Swainson gives to this group a generic value, but we doubt whether it is even entitled to a subgeneric rank." (Selby 1840); "Poliocephalus Selby, Cat. Gen. Subgen. Types Av., 1840, p. 47. Type, by monotypy and tautonymy, Podiceps poliocephalus Jardine and Selby." (Peters 1931, 1, 35) (see nestor).
Var. Poliocephelus.
Synon. Colymbetes, Dasyptilus.

poliocephalus
Gr. πολιος polios  grey, grizzled; -κεφαλος -kephalos  -headed  < κεφαλη kephalē  head.
● ex “Grey-headed Cuckow” of Latham 1787 (Cuculus).
● ex “Ash-headed Thrush” of Latham 1801 (Turdus).

rufopectus
L. rufus  rufous; pectus, pectoris  breast.
● See: rufopicta