Rufous-fronted thornbird 
Rufous-necked foliage-gleaner 
Rufous-tailed Foliage-gleaner 
Rufous-tailed Xenops 
Russet-mantled Softtail 
Rusty-backed spinetail 
Rusty-crowned tit-spinetail 
Rusty-fronted canastero 
Rusty-winged barbtail 
Scale-throated earthcreeper 
Scaly-throated Foliage-gleaner 
Scaly-throated leaftosser 
Sharp-billed canastero 
Sharp-billed treehunter 
Slender-billed xenops 
Speckled spinetail 
Spot-crowned woodcreeper 
Spotted barbtail 
Spotted Woodcreeper 
Star-chested treerunner 
Stout-billed cinclodes 
Straight-billed woodcreeper 
Streak-backed canastero 
Streak-breasted treehunter