| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 976 |
 | Merlin male | Sound | uu_wss | |
| 977 |
 | Mew Gull 1 | Sound | uu_wss | |
| 978 |
| Mew Gull 2 | Sound | uu_wss | |
| 979 |
 | Mexican Chickadee | Sound | uu_wss | |
| 980 |
 | Mexican Jay | Sound | uu_wss | |
| 981 |
| Mexican Jay (070517-40) | 2007-05-17 | Sound | uu_wss |
| 982 |
 | Mexican Spotted Owl Utah | Sound | uu_wss | |
| 983 |
| Mississippi Kite | 2001-04-07 | Sound | uu_wss |
| 984 |
| Mitred Parakeet | 2007-05-28 | Sound | uu_wss |
| 985 |
| Mitred Parakeet 1 | 2007-05-28 | Sound | uu_wss |
| 986 |
| Mitred Parakeet 2 | 2007-05-28 | Sound | uu_wss |
| 987 |
| Mitred Parakeet 3 | 2007-05-28 | Sound | uu_wss |
| 988 |
| Monk Parakeet | 2001-04-07 | Sound | uu_wss |
| 989 |
 | Montezuma Quail | Sound | uu_wss | |
| 990 |
 | Mottled Duck | Sound | uu_wss | |
| 991 |
 | Mountain Bluebird | Sound | uu_wss | |
| 992 |
| Mountain Bluebird (080709-395) | 2008-07-09 | Sound | uu_wss |
| 993 |
 | Mountain Chickadee | Sound | uu_wss | |
| 994 |
| Mountain Chickadee call (Idaho) | 2009-07-17 | Sound | uu_wss |
| 995 |
| Mountain Chickadee song (Idaho) | 2009-07-17 | Sound | uu_wss |
| 996 |
| Mountain Chickadee song and Lincoln's Sparrow song (Idaho) | 2009-07-17 | Sound | uu_wss |
| 997 |
| Mountain Plover | Sound | uu_wss | |
| 998 |
| Mountain Quail | Sound | uu_wss | |
| 999 |
 | Mourning Dove | Sound | uu_wss | |
| 1000 |
| Muddy Brook Wildlife Management Area 100507-01 | 2010-05-07 | Sound | uu_wss |