White-crested Elaenia

Here the details of the White-crested Elaenia named bird below:

SCI Name:  Elaenia albiceps
Protonym:  M[uscipeta] albiceps Mag.Zool. 7 cl.2 p.47
Taxonomy:  Passeriformes / Tyrannidae / Elaenia
Taxonomy Code:  whcela1
Type Locality:  part, Yungas, Bolivia; types from Yungas, Bolivia, fide Hellmayr, 1925, Novit. Zool., 32, p. 28.
Author:  d''Orbigny & Lafresnaye
Publish Year:  1837
IUCN Status:  Least Concern

DEFINITIONS

ELAENIA
(Tyrannidae; Ϯ Yellow-bellied Elaenia E. flavogaster) Gr. ελαινεος elaineos  of olive-oil, oleaginous  < ελαια elaia  olive; "Elænia n. g. ⁶)  Musc. pagana Licht.; brevirostris, — modesta, — aurifrons Pr. Max; — Hylophilus cinerascens ejusd.  Numerosæ americanæ, transitum ad Tyrannides præbentes; Fringillis subsimiles.   ...    ⁶) Rostrum crassiusculum, breve, basi dilatatum, altitudine latius; carina dorsali subacuta, sutura recta.  Membrana narium plumulis tecta.  Vibrissæ tenues.  Alæ mediocres vel sub-breves, rotundatæ, remigib. 3-5 reliqvis longioribus.  Pedes mediocres, digitis brevibus, subliberis.  Olivaceæ-cinerascentes; sæpe subtus, interdum vertice flavæ. — Eλαινιος, oleagineus." (Sundevall 1836); "Elaenia Sundevall, 1836, Vetensk. Akad. Handl., 1835, p. 89. Type, by subsequent designation (Gray, 1855, Cat. Gen. Subgen. Birds, p. 49), Muscicapa pagana Lichtenstein = Pipra flavogaster Thunberg." (Traylor in Peters, 1979, VIII, pp. 26-27).  
Var. Elaenea, Elainea, Elainia, Eloenia, Elana, Elania.

albiceps
L. albus  white; -ceps  -headed  < caput, capitis  head.

SUBSPECIES

White-crested Elaenia (White-crested)
SCI Name: Elaenia albiceps [albiceps Group]
ELAENIA
(Tyrannidae; Ϯ Yellow-bellied Elaenia E. flavogaster) Gr. ελαινεος elaineos  of olive-oil, oleaginous  < ελαια elaia  olive; "Elænia n. g. ⁶)  Musc. pagana Licht.; brevirostris, — modesta, — aurifrons Pr. Max; — Hylophilus cinerascens ejusd.  Numerosæ americanæ, transitum ad Tyrannides præbentes; Fringillis subsimiles.   ...    ⁶) Rostrum crassiusculum, breve, basi dilatatum, altitudine latius; carina dorsali subacuta, sutura recta.  Membrana narium plumulis tecta.  Vibrissæ tenues.  Alæ mediocres vel sub-breves, rotundatæ, remigib. 3-5 reliqvis longioribus.  Pedes mediocres, digitis brevibus, subliberis.  Olivaceæ-cinerascentes; sæpe subtus, interdum vertice flavæ. — Eλαινιος, oleagineus." (Sundevall 1836); "Elaenia Sundevall, 1836, Vetensk. Akad. Handl., 1835, p. 89. Type, by subsequent designation (Gray, 1855, Cat. Gen. Subgen. Birds, p. 49), Muscicapa pagana Lichtenstein = Pipra flavogaster Thunberg." (Traylor in Peters, 1979, VIII, pp. 26-27).  
Var. Elaenea, Elainea, Elainia, Eloenia, Elana, Elania.

White-crested Elaenia (Chilean)
SCI Name: Elaenia albiceps chilensis
chilensis
Chile (formerly spelled Chili). Etymology disputed; probably from Mapuche chilli  ends of the earth.
● Erroneous TL. Chile (= Manila, Philippines) (syn. Lalage nigra).
● Erroneous implied TL. Chile (= Bolivia) (Tangara).
● “Hellmayr is the most recent author who proposes to reject Molina’s name on the grounds that it is a composite between the present form and Jacana j. jacana. It must be remembered that a large percentage of the names of the 18^th century authors are composites, and if any degree of stability in nomenclature is to be attained the name must be fixed on one of the species to which the account applies, provided of course that the name is identifiable at all” (Peters 1934) (Vanellus).
 

White-crested Elaenia (Peruvian)
SCI Name: Elaenia albiceps modesta
modesta / modestum / modestus
L. modestus  plain, modest, unassuming  < modus  measure, standard.