Collared Nightjar

SCI Name:  Gactornis enarratus
Protonym:  Caprimulgus enarratus Ann.Mag.Nat.Hist.(4), 8 p.428
Taxonomy:  Caprimulgiformes / Caprimulgidae / Gactornis
Taxonomy Code:  colnig1
Type Locality:  Madagascar.
Author:  Gray, GR
Publish Year:  1871
IUCN Status:  Least Concern

DEFINITIONS

GACTORNIS
(Caprimulgidae; Ϯ Collared Nightjar G. enarratus) “Gactornis (Han, Robbins, and Braun) new genus.   Type species — Caprimulgus enarratus Gray 1871.   Diagnosis — A caprimulgid defined by its large genetic divergence in both nuclear and mtDNA from all other genera and species of caprimulgids studied thus far.  No defining morphological characters for the genus are yet known.  The single species, enarratus, appears to be unusually quiet for a caprimulgid; its song is as yet unknown.   Etymology —  Gactornis is formed from the four single letter abbreviations (G, A, C, T) for the nucleotides of DNA (guanine, adenine, cytosine and thymine) and the Greek word ornis (bird).  It refers to the fact that the distinctiveness of the lineage only became apparent upon examination of the nucleotide sequence of its DNA.  Gactornis is masculine, so the scientific name of the single species becomes Gactornis enarratus.  Its English name should remain Collared Nightjar." (Han, Robbins & Braun 2010); "Gactornis Han, Robbins and Braun, 2010, Molecular Phylogenetics and Evolution, 55, p. 452.  Type, by original designation and monotypy, Caprimulgus enarratus Gray, 1871." (JAJ 2021).

enarratus
L. enarratus explained in detail < enarrare to explain. 
• “Hitherto only one species of the genus Caprimulgus, and that of a sombre colour, has been known as an inhabitant of Madagascar.  It is therefore interesting to be able to record another species of this singular genus that is a well-marked and showily coloured bird, viz.: — Caprimulgus enarratus.  ...  The specimen just described is “the beautiful new Goatsucker” of which Mr. Sharpe says he is not aware that I had published any description.  I can, however, assure him that the description of this fine bird was written more than twelve months ago; but I think it right to make him aware that I have deferred its publication until the present opportunity.” (G. Gray 1871) (Gactornis).