| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 1276 |  | South Polar Skua | 2006-09-06 | Sound | uu_wss |
| 1277 | | Southern Pacific Rattlesnake | 2009-08-14 | Sound | uu_wss |
| 1278 | | Southern Pacific Rattlesnake 2 | 2009-08-14 | Sound | uu_wss |
| 1279 | | Speech at the 7th Annual Arab Students Convention | 1958-09-06 | Sound | uum_avacr |
| 1280 | | Speedquest - The Blue Flame Story narrated by Richard Keller, III | 1964; 1965; 1966; 1967; 1968; 1969; 1970 | Sound | uum_avacr |
| 1281 | | Spotted Dove 1 | 1997-08-17 | Sound | uu_wss |
| 1282 | | Spotted Dove 2 | 2005-05 | Sound | uu_wss |
| 1283 | | Spotted Dove 3 | 2008-10-13 | Sound | uu_wss |
| 1284 | | Spotted Dove 4 | 2006-05-29 | Sound | uu_wss |
| 1285 | | Spotted Dove 5 | 2008-02 | Sound | uu_wss |
| 1286 | | Spotted Dove 6 | 2008-02 | Sound | uu_wss |
| 1287 | | Spotted Dove 7 | 1997-08-17 | Sound | uu_wss |
| 1288 | | Spotted Dove 8 | 2009-07-03 | Sound | uu_wss |
| 1289 | | Spotted Dove 9 | 2008-04-23 | Sound | uu_wss |
| 1290 | | Spotted Owl (brief) 100817-0350 | 2010-08-17 | Sound | uu_wss |
| 1291 | | Spotted Owl pair 100816-2315 | 2010-08-16 | Sound | uu_wss |
| 1292 | | Spotted Owl pair 100817-0014 | 2010-08-17 | Sound | uu_wss |
| 1293 | | Spotted Owl pair 100817-0350 | 2010-08-17 | Sound | uu_wss |
| 1294 | | Sprague's Pipit | 2008-07-01 | Sound | uu_wss |
| 1295 | | Spring Peepers 100503-01 | 2010-05-03 | Sound | uu_wss |
| 1296 | | Spring Peepers 100506-1852 | 2010-05-06 | Sound | uu_wss |
| 1297 | | Spruce Grouse 1 | 2010-04-04 | Sound | uu_wss |
| 1298 | | Spruce Grouse 2 | 2010-04-04 | Sound | uu_wss |
| 1299 | | Spruce Grouse 3 | 2010-04-04 | Sound | uu_wss |
| 1300 | | Spruce Grouse 4 | 2010-05-10 | Sound | uu_wss |