Pale-rumped Swift

Here the details of the Pale-rumped Swift named bird below:

SCI Name:  Chaetura egregia
Protonym:  Chaetura egregia Proc.Biol.Soc.Wash. 29 p.97
Taxonomy:  Caprimulgiformes / Apodidae / Chaetura
Taxonomy Code:  parswi1
Type Locality:  Rio Surutu, Bolivia.
Author:  Todd
Publish Year:  1916
IUCN Status:  Least Concern

DEFINITIONS

CHAETURA
(Apodidae; Ϯ Chimney Swift C. pelagica) Gr. χαιτη khaitē  long flowing hair; ουρα oura  tail; "GENUS XLI.—CHÆTURA mihi.  Beak with the lower mandible straight at the tip.  Wings very long.  Tail very short; its feathers subulated and acute at the tip.  HIRUNDO Auctorum.—CYPSELUS, pars. Temm.    Sp. 1. Ch. pelasgia. Hirundo pelasgia. Steph. v. x. 128.—North America.   Sp. 2. Ch. Martinicana. Hirunda acuta. Steph. v. x. 131. pl. 15.—West Indies.   Sp. 3. Ch. pacifica. Hirundo pacifica. Steph. v. x. 132.—New Holland.   Sp. 4. Ch. australis. Hirundo caudacuta. Steph. v. x. 133.—New South Wales.   Sp. 5. Ch. fusca. Hirundo fusca. Steph. v. x. 133.——?   Sp. 6. Ch. collaris.  ...  INHABITS Brazil." (Stephens 1826); "Chætura Stephens, in Shaw's Gen. Zool., 13, pt. 2, 1826, p. 76. Type, by subsequent designation, Chaetura pelasgia Stevens [sic] = Hirundo pelagica Linné. (Swainson, Zool. Illustr. (2), 1, 1829, text to pl. 42.)" (Peters, 1940, IV, p. 235).
Var. Chatura, Chaturae.
Synon. Acanthura, Acanthylis, Pelasgia, Uranteris.

egregia
L. egregius  admirable, extraordinary, excellent  < ex  out of; grex, gregis  herd (cf. “without flocking (in this sense [Crecopsis], probably ‘solitary’ ” (Hockey et al. 2005)).