- Saddle-billed Stork
- Sand Martin
- Sanderling
- Sandwich Tern
- Sardinian Warbler
- Sayaca Tanager
- Scaly-breasted Munia
- Scaly-breasted Thrasher
- Scaly-naped Pigeon
- Scarlet-chested Sunbird
- Scarlet-rumped Tanager
- Scarlet Macaw
- Semipalmated Plover
- Semipalmated Sandpiper
- Semiplumbeous Hawk
- Senegal Lapwing
- Short-crested Flycatcher
- Short-eared Owl
- Short-toed Snake Eagle
- Short-toed Treecreeper
- Slender-billed Gull
- Slender-billed Weaver
- Smooth-billed Ani
- Snow Bunting
- Snowy Egret
- Solitary Sandpiper
- Sooty Chat
- Sooty Tern
- Southern Red Bishop
- Speckle-breasted Woodpecker
- Speckled Mousebird
- Spectacled Thrush
- Splendid Starling
- Spot-flanked Barbet
- Spotted Dove
- Spotted Flycatcher
- Spotted Redshank
- Spotted Sandpiper
- Spur-winged Lapwing
- Squacco Heron
- Stilt Sandpiper
- Stork-billed Kingfisher
- Striated Heron
- Striped Kingfisher
- Sulphur-crested Cockatoo
- Swallow-tailed Hummingbird
- Swamp Flycatcher