| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 401 |
 |
Lincoln's Sparrow | Sound | uu_wss | |
| 402 |
 |
Loggerhead Shrike | Sound | uu_wss | |
| 403 |
 |
Long-billed Curlew | Sound | uu_wss | |
| 404 |
 |
Long-eared Owl | Sound | uu_wss | |
| 405 |
 |
Long-tailed Jaeger | Sound | uu_wss | |
| 406 |
|
Lucifer Hummingbird | Sound | uu_wss | |
| 407 |
|
Lucy's Warbler | Sound | uu_wss | |
| 408 |
 |
MacGillivray's Warbler | Sound | uu_wss | |
| 409 |
 |
Mallard 1 | Sound | uu_wss | |
| 410 |
|
Mallard 2 | Sound | uu_wss | |
| 411 |
 |
Marbled Godwit | Sound | uu_wss | |
| 412 |
 |
Marsh Wren western | Sound | uu_wss | |
| 413 |
|
McCown's Longspur | Sound | uu_wss | |
| 414 |
 |
Merlin male | Sound | uu_wss | |
| 415 |
 |
Mew Gull 1 | Sound | uu_wss | |
| 416 |
|
Mew Gull 2 | Sound | uu_wss | |
| 417 |
|
Mexican Chickadee | Sound | uu_wss | |
| 418 |
|
Mitred Parakeet 1 | 2007-05-28 | Sound | uu_wss |
| 419 |
|
Mitred Parakeet 2 | 2007-05-28 | Sound | uu_wss |
| 420 |
|
Mitred Parakeet 3 | 2007-05-28 | Sound | uu_wss |
| 421 |
|
Monk Parakeet | 2001-04-07 | Sound | uu_wss |
| 422 |
 |
Mormon Cricket | Sound | uu_wss | |
| 423 |
|
Mountain Plover | Sound | uu_wss | |
| 424 |
 |
Mourning Dove | Sound | uu_wss | |
| 425 |
 |
Mute Swan | Sound | uu_wss |