- Saddle-billed Stork
- Saffron Finch
- Sand Martin
- Sanderling
- Sardinian Warbler
- Sarus Crane
- Scaled Dove
- Scarlet Ibis
- Sedge Warbler
- Short-toed Snake Eagle
- Short-toed Treecreeper
- Slender-billed Gull
- Smooth-billed Ani
- Snow Bunting
- Snowy Egret
- Social Flycatcher
- Song Thrush
- Southern Ground Hornbill
- Southern Lapwing
- Southern Pochard
- Southern Screamer
- Spanish Sparrow
- Spectacled Warbler
- Spotted Redshank
- Squacco Heron
- Squirrel Cuckoo
- Stock Dove
- Striated Heron
- Sulphur-crested Cockatoo
- Sun Parakeet
- Sunbittern
- Superb Parrot
- Swan Goose