Brownish Elaenia

Here the details of the Brownish Elaenia named bird below:

SCI Name:  Elaenia pelzelni
Protonym:  Elaenia pelzelni Ornis 14 p.397
Taxonomy:  Passeriformes / Tyrannidae / Elaenia
Taxonomy Code:  broela1
Type Locality:  Lamalonga, Rio Negro, Brazil.
Author:  von Berlepsch
Publish Year:  1907
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.

pelzelni / pelzelnii
August Pelzel Edler von Pelzeln (1825-1891) Austrian ornithologist, collector (syn. Amazilia franciae cyaneicollis, Ammonastes, Aplonis, subsp. Cyanophonia cyanocephala, syn. Cygnus olor, Elaenia, Granatellus, syn. Ibycter americanus, syn. Micrastur gilvicollis, subsp. Myiarchus swainsoni, Ploceus, Pseudotriccus, subsp. Rhipidura albiscapa, subsp. Sicalis flaveola, Tachybaptus, Thamnophilus, subsp. Tityra inquisitor).