| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 526 |
 |
Red-breasted Merganser | Sound | uu_wss | |
| 527 |
 |
Red-eyed Vireo | Sound | uu_wss | |
| 528 |
 |
Red-naped Sapsucker drum | Sound | uu_wss | |
| 529 |
 |
Red-necked Phalarope | Sound | uu_wss | |
| 530 |
 |
Red-shouldered Hawk | Sound | uu_wss | |
| 531 |
 |
Red-tailed Hawk | Sound | uu_wss | |
| 532 |
 |
Red-throated Loon | Sound | uu_wss | |
| 533 |
 |
Ring-necked Duck | Sound | uu_wss | |
| 534 |
 |
Rock Dove | Sound | uu_wss | |
| 535 |
 |
Rock Pigeon | Sound | uu_wss | |
| 536 |
 |
Rock Ptarmigan | Sound | uu_wss | |
| 537 |
 |
Rock Sandpiper | Sound | uu_wss | |
| 538 |
 |
Rock Squirrel vocalizations | 1999-08-15 | Sound | uu_wss |
| 539 |
 |
Rock Wren | Sound | uu_wss | |
| 540 |
 |
Ross's Goose | Sound | uu_wss | |
| 541 |
 |
Rough-legged Hawk | Sound | uu_wss | |
| 542 |
 |
Royal Tern | Sound | uu_wss | |
| 543 |
 |
Ruddy Ground-Dove 3 | 2006-02-17 | Sound | uu_wss |
| 544 |
 |
Rufous Hummingbird | Sound | uu_wss | |
| 545 |
|
Rufous-backed Robin 3 | 1995-02-28 | Sound | uu_wss |
| 546 |
|
Rufous-backed Robin 4 | 1995-03-01 | Sound | uu_wss |
| 547 |
 |
Rufous-crowned Sparrow | Sound | uu_wss | |
| 548 |
 |
Rusty Blackbird | Sound | uu_wss | |
| 549 |
 |
Sage Sparrow, California | Sound | uu_wss | |
| 550 |
 |
Sage Thrasher | Sound | uu_wss |