Guianan Tyrannulet (Zimmerius acer) [XC288567]
by Caio Brito from IBAMA reserve between Teresina and Altos, PI, Brazil (call)
Guianan Tyrannulet (Zimmerius acer) [XC271749]
by Peter Boesman from Brownsberg, Brokopondo, Suriname (call)
Subspecies
No subspecies.
Zimmerius gracilipes (Sibley and Monroe 1990, 1993; Stotz et al. 1996) has been split into Slender-footed Tyrannulet (Zimmerius gracilipes) and Guianan Tyrannulet (Zimmerius acer) following SACC (2008).