- Saddle-billed Stork
- Saffron-crowned Tanager
- Saffron Finch
- Sand Martin
- Sanderling
- Sandwich Tern
- Sardinian Warbler
- Scale-crested Pygmy Tyrant
- Scarlet-browed Tanager
- Scarlet-chested Sunbird
- Scarlet-rumped Tanager
- Scarlet-thighed Dacnis
- Scarlet Macaw
- Scissor-tailed Kite
- Scrub Blackbird
- Secretarybird
- Semiplumbeous Hawk
- Senegal Coucal
- Senegal Lapwing
- Senegal Parrot
- Senegal Thick-knee
- Sepia-brown Wren
- Shikra
- Shining Honeycreeper
- Shoebill
- Short-tailed Hawk
- Short-toed Treecreeper
- Sickle-winged Guan
- Sierran Elaenia
- Silver-throated Tanager
- Slate-colored Boubou
- Slate-throated Whitestart
- Slaty Flowerpiercer
- Slender-billed Greenbul
- Slender-billed Gull
- Slender-billed Weaver
- Smoke-colored Pewee
- Smoky-brown Woodpecker
- Social Flycatcher
- Song Thrush
- Sooty-capped Bush Tanager
- Sooty-headed Tyrannulet
- Sooty Chat
- Southern Ground Hornbill
- Southern Red Bishop
- Southern Rough-winged Swallow
- Sparkling Violetear
- Speckle-breasted Woodpecker
- Speckled Hummingbird
- Speckled Mousebird
- Speckled Pigeon
- Spectacled Owl
- Spectacled Weaver
- Spectacled Whitestart
- Splendid Starling
- Splendid Sunbird
- Spotted Barbtail
- Spotted Eagle-Owl
- Spotted Flycatcher
- Spotted Palm Thrush
- Spotted Thick-knee
- Spotted Woodcreeper
- Spur-winged Lapwing
- Squacco Heron
- Squirrel Cuckoo
- Steel-blue Whydah
- Stock Dove
- Stout Cisticola
- Streak-capped Treehunter
- Streak-headed Woodcreeper
- Streaked Tuftedcheek
- Striated Heron
- Striped Cuckoo
- Striped Kingfisher
- Striped Treehunter
- Strong-billed Woodcreeper
- Subalpine Warbler
- Subtropical Cacique
- Sudan Golden Sparrow
- Summer Tanager
- Sungrebe
- Superb Sunbird
- Swainson's Thrush
- Swallow-tailed Bee-eater
- Swallow-tailed Kite
- Swamp Flycatcher