- Sabota Lark
- Saddle-billed Stork
- Sand Martin
- Sanderling
- Sandwich Tern
- Sardinian Warbler
- Scaly-breasted Munia
- Scaly-throated Honeyguide
- Scarlet-backed Flowerpecker
- Scarlet-chested Sunbird
- Secretarybird
- Sedge Warbler
- Senegal Thick-knee
- Short-clawed Lark
- Short-eared Owl
- Short-toed Treecreeper
- Silvery-cheeked Hornbill
- Slender-billed Gull
- Slender-tailed Nightjar
- Smew
- Snow Bunting
- Sombre Greenbul
- Song Thrush
- South African Shelduck
- Southern Bald Ibis
- Southern Banded Snake Eagle
- Southern Black Flycatcher
- Southern Boubou
- Southern Crested Guineafowl
- Southern Fiscal
- Southern Grey-headed Sparrow
- Southern Ground Hornbill
- Southern Masked Weaver
- Southern Pochard
- Southern Red-billed Hornbill
- Southern Red Bishop
- Southern Yellow-billed Hornbill
- Southern Yellow White-eye
- Speckled Mousebird
- Speckled Pigeon
- Spectacled Weaver
- Spot-breasted Lapwing
- Spotless Starling
- Spotted Flycatcher
- Spotted Nutcracker
- Spotted Redshank
- Spotted Thick-knee
- Spur-winged Goose
- Spur-winged Lapwing
- Squacco Heron
- Square-tailed Drongo
- Streak-eared Bulbul
- Streaky Seedeater
- Stripe-throated Bulbul
- Striped Kingfisher
- Superb Starling
- Swainson's Sparrow
- Swainson's Spurfowl
- Swee Waxbill