Antwrens were well-represented as well:

Star-throated Antwren (Brazilian Atlantic Forest endemic)
Silvery-flanked Antwren
Salvadori's Antwren (Brazilian Atlantic Forest endemic)
Unicolored Antwren (Brazilian Atlantic Forest endemic)
Rufous-winged Antwren
Streak-capped Antwren (Atlantic Forest endemic)
Rusty-backed Antwren (Pantanal)