- Saddle-billed Stork
- Sanderling
- Sardinian Warbler
- Sarus Crane
- Scarlet Ibis
- Sclater's Crowned Pigeon
- Secretarybird
- Short-toed Snake Eagle
- Short-toed Treecreeper
- Silvery-cheeked Hornbill
- Slender-billed Gull
- Snowy Owl
- Song Thrush
- Southern Cassowary
- Southern Ground Hornbill
- Southern Screamer
- Speckled Mousebird
- Speckled Pigeon
- Spectacled Owl
- Spotted Eagle-Owl
- Spotted Flycatcher
- Spotted Redshank
- Squacco Heron
- Steppe Eagle
- Straw-necked Ibis
- Striated Heron
- Striped Owl
- Superb Parrot
- Superb Starling