Passeriformes
Thamnophilidés
Myrmotherula
assimilis
Leaden Antwren (Myrmotherula assimilis) is a species of bird in the Thamnophilidae family.
Forest : Subtropical/Tropical Moist Lowland, Subtropical/Tropical Swamp ; Shrubland : Subtropical/Tropical Moist ; Wetlands (inland) : Permanent Rivers/Streams/Creeks (includes waterfalls)