- Sacred Kingfisher
- Saddle-billed Stork
- Saker Falcon
- Sanderling
- Sardinian Warbler
- Satin Flycatcher
- Scaly-breasted Lorikeet
- Scaly-throated Honeyguide
- Scarlet-chested Sunbird
- Scarlet Ibis
- Secretarybird
- Senegal Thick-knee
- Sharp-tailed Sandpiper
- Short-tailed Shearwater
- Short-toed Snake Eagle
- Short-toed Treecreeper
- Shy Albatross
- Silver Gull
- Silvereye
- Silvery-cheeked Hornbill
- Slate-colored Boubou
- Slender-tailed Nightjar
- Somali Crow
- Song Thrush
- Sooty Chat
- Sooty Oystercatcher
- Southern Crested Caracara
- Southern Ground Hornbill
- Southern Pochard
- Speckled Mousebird
- Speckled Pigeon
- Spectacled Monarch
- Spectacled Weaver
- Spot-breasted Lapwing
- Spot-flanked Barbet
- Spotted Dove
- Spotted Flycatcher
- Spotted Palm Thrush
- Spotted Redshank
- Spur-winged Goose
- Spur-winged Lapwing
- Squacco Heron
- Stock Dove
- Streaky Seedeater
- Striated Caracara
- Striated Heron
- Striated Thornbill
- Striped Kingfisher
- Subalpine Warbler
- Sulphur-crested Cockatoo
- Sun Parakeet
- Superb Fairywren
- Superb Starling
- Swahili Sparrow
- Swainson's Sparrow
- Swan Goose