• Schrenk's Reed Warbler
• Schutzstaffel
• Schwerin
• Scientologist
• Scientology
• Scimitar-bill
• Scimitar-billed Woodhewer
• Scimitar-winged Piha
• Scintillant Hummingbird
• Scissor-tailed Flycatcher
• Scissor-tailed Hummingbird
• Scissor-tailed Nightjar
• Scissor-tailed ite
• Sclater's Antwren
• Sclater's Lark
• Sclater's Monal Pheasant
• Sclater's Tyrannulet
• Sclater's Whistler
• Scopoli's Shearwater
• Scorpio
• Scot
• Scotch tape tm
• Scotch terrier
• Scotland
• Scots
• Scotsman
• Scott's Oriole
• Scottish
• Scottish Crossbill
• Scrap it!
• Scratch a lover, and find a foe.
• Screaming Cowbird
• Screaming Piha
• Screw you! Am.
• Scribble-tailed
• Scrub Blackbird
• Scrub Euphonia
• Scrub Flycatcher
• Scrub Greenlet
• Scrub Jay
• Scrub Tanager
• Scrub Tit
• Scrub Warbler
• Sea of Japan
• Sea of Marmara
• Sea of Okhotsk
• Seaside Cinclodes
• Seaside Sparrow
• Seattle
• Sec. : Secretary
• Second Channel of German Television Broadcasting
• Secret State Police
• Secretary Bird
• Secretary of Commerce Am.
• Secretary of Employment Br.
• Secretary of Labor Am.
• Secretary of State for Trade and Industry
• Secretary of State for the Environment Br.
• Secretary of the Interior Am.
• Sedge Warbler
• Sedge Wren
• See See Partridge
• See me tomorrow!
• See of Rome
• See you !
• See you better! Am.
• See you later.
• Seebohm's Feathertailed Warbler
• Seger cone
• Seger formula
• Sellotape Br.
• Selva Cacique
• Semarang
• Semi-collared Nighthawk
• Semi-collared Sparrow Hawk
• Semi-palmated Plover
• Semi-plumbeous Hawk
• Semicollared Flycatcher
• Semicollared Puffbird
• Semipalmated Sandpiper
• Semper's Warbler
• Sen., sen., Snr, Sr : senior
• Sendai
• Senegal
• Senegal Batis
• Senegal Coucal
• Senegal Parrot
• Senegal Plover
• Senegal Stone-Curlew
• Senegal Wattled Plover
• Senegal dolphin
• Senegalese
• Sennar Kapok Tit
• Sentinel Rock Thrush
• Seoul
• Sepia-brown Wren
• Sepia-capped Leptopogon
• September
• Seram King Starling
• Seram Rufous Fantail