White-throated Tyrannulet
Mecocerculus leucophrys
(L 5.5")
From coasts of Venezuela
to northwest Argentina.
Acanama Reserve
21Feb2013
flash photo
Could have been named the
“Puffy-throated Tyrannulet”
(Cornell Ornith. Lab).
Papallacta Pass
13Mar2017
 Mecocerculus is Greek for long
tail; leucophrys in Greek means
white brow.
© Andrew
Spencer
Macaulay
Library
© Wikipedia