The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
(first | last) View (previous 100 | next 100) (20 | 50 | 100 | 250 | 500)- Silvicultrix (4 members)
- Simoxenops (0 members)
- Singapore (2 members)
- Sinosuthora (6 members)
- Siphonorhis (2 members)
- Sipia (4 members)
- Sipodotus (1 member)
- Siptornis (1 member)
- Siptornopsis (0 members)
- Sirystes (4 members)
- Sitta (28 members)
- Sittasomus (1 member)
- Sittidae (1 member)
- Sittiparus (5 members)
- Siva (0 members)
- Skutchia (0 members)
- Slovakia (6 members)
- Slovenia (2 members)
- Slr Accessories (8 members)
- Slr Cameras, Digital & Film (17 members)
- Slr Cameras, Digital and Film (1 member)
- Slr Lenses (30 members)
- Smicrornis (1 member)
- Smithornis (3 members)
- Smutsornis (1 member)
- Snowornis (2 members)
- Solomon Islands (0 members)
- Somalia (0 members)
- Somateria (3 members)
- Somerset (7 members)
- South (22 members)
- South Africa (6 members)
- South America (15 members)
- South Australia (0 members)
- South Carolina (4 members)
- South Dakota (0 members)
- South India (7 members)
- South Korea (0 members)
- South Sudan (0 members)
- South Wales (17 members)
- Southern Switzerland (4 members)
- Spain (41 members)
- Spartonoica (1 member)
- Spatula (10 members)
- Speculanas (1 member)
- Speculipastor (1 member)
- Speirops (0 members)
- Spelaeornis (9 members)
- Speotyto (0 members)
- Spermagra (0 members)
- Spermestes (4 members)
- Spermophaga (3 members)
- Sphecotheres (3 members)
- Spheniscidae (6 members)
- Sphenisciformes (1 member)
- Spheniscus (4 members)
- Sphenocichla (0 members)
- Sphenoeacus (1 member)
- Sphenopsis (1 member)
- Sphyrapicus (5 members)
- Spilopelia (2 members)
- Spiloptila (1 member)
- Spilornis (6 members)
- Spindalidae (1 member)
- Spindalis (4 members)
- Spinus (20 members)
- Spiranthes (1 member)
- Spiza (1 member)
- Spizaetus (12 members)
- Spizastur (1 member)
- Spizella (6 members)
- Spizelloides (1 member)
- Spiziapteryx (1 member)
- Spizixos (2 members)
- Spizocorys (7 members)
- Spodiopsar (2 members)
- Sporaeginthus (0 members)
- Sporathraupis (1 member)
- Sporophila (41 members)
- Sporopipes (2 members)
- Spreo (0 members)
- Sri Lanka (7 members)
- Stachyridopsis (0 members)
- Stachyris (13 members)
- Stactocichla (2 members)
- Stactolaema (4 members)
- Staffordshire (11 members)
- Stagonopleura (3 members)
- Staphida (3 members)
- Starnoenas (1 member)
- Steatornis (1 member)
- Steatornithidae (1 member)
- Stelgidillas (1 member)
- Stelgidopteryx (2 members)
- Stellula (0 members)
- Stenostira (1 member)
- Stenostiridae (4 members)
- Stephanoaetus (1 member)
- Stephanophorus (1 member)
- Stephanoxis (2 members)