Agile Tit-Tyrant

Here the details of the Agile Tit-Tyrant named bird below:

SCI Name:  Uromyias agilis
Protonym:  Euscarthmus agilis Proc.Zool.Soc.London Pt24 no.302 p.28 pl.118
Taxonomy:  Passeriformes / Tyrannidae / Uromyias
Taxonomy Code:  agitit1
Type Locality:  'Bogota,'' Colombia.
Author:  Sclater, PL
Publish Year:  1856
IUCN Status:  Least Concern

DEFINITIONS

UROMYIAS
(Tyrannidae; Ϯ Agile Tit Tyrant U. agilis) Gr. ουρα oura  tail; Mod. L. myias  flycatcher  < Gr. μυια muia, μυιας muias  fly; πιαζω piazō  to seize; "Uromyias genus nov.  Nearly related to Spizitornis, but bill much shorter, wider and more depressed; rictal bristles much more developed; crest feathers on apical portion neither attenuated nor decurved; tail proportionately longer and strongly graduated, the distance between the shortest and longest rectrix being at least equal to length of tarsus; rectrices conspicuously pointed at the tip instead of bluntly rounded.  Type Euscarthmus agilis SCLATER" (Hellmayr 1927).

agile / agilis
L. agilis  nimble, active  < agere  to set in motion.
● "44. PSITTACUS.  ...  agilis.  15. P. submacrourus viridis, tectricibus remigum primorum cærulescentium fulvis, cauda subtus rubra.  Psittacus minor viridis. Edw. av. 168. t. 168.  Habitat in America.  Magnitudo Coccothraustis. Cauda cuneiformis, sed non elongata." (Linnaeus 1758) (Amazona).
● ex “Gobe-mouche olive de Cayenne” of d’Aubenton 1765-1781, pl. 574, fig. 2, and de Buffon 1770-1786, and “Active Fly-catcher” of Latham 1783 (?Empidonax sp. or Myiobius sp.).