- Sabine's Gull
- Sand Martin
- Sanderling
- Sandwich Tern
- Scaly-breasted Munia
- Scaly-breasted Thrasher
- Sedge Warbler
- Semipalmated Plover
- Semipalmated Sandpiper
- Short-billed Dowitcher
- Short-toed Snake Eagle
- Short-toed Treecreeper
- Siberian Stonechat
- Smew
- Snow Bunting
- Snowy Egret
- Song Thrush
- Sooty Shearwater
- Spotted Flycatcher
- Spotted Redshank
- Spotted Sandpiper
- Stock Dove
- Swan Goose