- Saddle-billed Stork
- Saffron-crowned Tanager
- Saffron Finch
- Sao Tome Paradise Flycatcher
- Sao Tome Prinia
- Scaly-feathered Weaver
- Scrub Tanager
- Senegal Coucal
- Shiny Cowbird
- Silver-beaked Tanager
- Slate-colored Seedeater
- Sociable Weaver
- Song Thrush
- Southern Black Flycatcher
- Southern Ground Hornbill
- Southern House Wren
- Southern Lapwing
- Southern Masked Weaver
- Southern Red-billed Hornbill
- Southern Red Bishop
- Southern Yellow-billed Hornbill
- Sparkling Violetear
- Speckled Mousebird
- Speckled Pigeon
- Splendid Starling
- Spotted Flycatcher
- Spotted Greenbul
- Spur-winged Goose
- Spur-winged Lapwing
- Square-tailed Nightjar
- Striated Heron
- Swainson's Spurfowl
- Sword-billed Hummingbird