| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 1 |  | A Tabulation of Snow Avalanche Fatalities in Colorado | 1965-09 | Text | uu_altaav |
| 2 |  | A Tabulation of Snow Avalanche Fatalities in Colorado | 1968-05 | Text | uu_altaav |
| 3 |  | Black Rail 1 | 1994-11-04 | Sound | uu_wss |
| 4 | | Black Rail 2 | 1999-07-12 | Sound | uu_wss |
| 5 | | Black Rail 3 | 1999-07-12 | Sound | uu_wss |
| 6 | | Black Rail 4 | 2007-04-28 | Sound | uu_wss |
| 7 | | Black Rail 5 | 2008-05-04 | Sound | uu_wss |
| 8 | | Black Rail 6 | 2008-05-04 | Sound | uu_wss |
| 9 |  | Black-footed Ferret chatter | Sound | uu_wss | |
| 10 |  | Boreal Owl 1 | 2007-04-13 | Sound | uu_wss |
| 11 | | Boreal Owl 2 | 2007-04-13 | Sound | uu_wss |
| 12 | | Boreal Owl 3 | 2007-10-05 | Sound | uu_wss |
| 13 | | Boreal Owl 6 | 2009-03-20 | Sound | uu_wss |
| 14 | | Common Poorwill 100616-2253 | 2010-06-16 | Sound | uu_wss |
| 15 | | Common Poorwill 100617-0059 | 2010-06-17 | Sound | uu_wss |
| 16 | | Common Poorwill 100617-0201 | 2010-06-17 | Sound | uu_wss |
| 17 |  | Diary of B. H. Roberts, 1884 - 1885 | 1884; 1885 | Text | uu_awm |
| 18 | | Dusky Grouse 1 | 2007-06-14 | Sound | uu_wss |
| 19 | | Dusky Grouse 2 | 2005-05-04 | Sound | uu_wss |
| 20 |  | Eared Grebe | 2004-01-08 | Sound | uu_wss |
| 21 | | Eastern Screech-Owl song | 2009-04-17 | Sound | uu_wss |
| 22 | | Elk - female - bark | 2006-08-16 | Sound | uu_wss |
| 23 | | Elk - female - bugle | 2006-08-16 | Sound | uu_wss |
| 24 | | Elk - female - bugle with male response | 2006-08-16 | Sound | uu_wss |
| 25 | | Eurasian Collared Dove 2 | 2006-04-29 | Sound | uu_wss |