- Sage Grouse
- Satin Bowerbird
- Satyr Tragopan
- Sclater's Monal
- Siamese Fireback
- Silver Pheasant
- Silvery-cheeked Hornbill
- Snow Goose
- Southern Ground Hornbill
- Spectacled Eider
- Splendid Astrapia
- Spotted Bowerbird
- Spruce Grouse
- Sri Lanka Grey Hornbill
- Sri Lanka Junglefowl
- Steller's Jay
- Steller's Sea Eagle
- Sulawesi Hornbill
- Sulu Hornbill