| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 126 |
 |
Blue-gray Gnatcatcher 100607-1006 | 2010-06-07 | Sound | uu_wss |
| 127 |
 |
Blue-headed Vireo | Sound | uu_wss | |
| 128 |
 |
Blue-winged Teal 1 | Sound | uu_wss | |
| 129 |
 |
Blue-winged Teal 3 | Sound | uu_wss | |
| 130 |
 |
Bluethroat | Sound | uu_wss | |
| 131 |
 |
Bobolink | Sound | uu_wss | |
| 132 |
 |
Bohemian Waxwing | Sound | uu_wss | |
| 133 |
 |
Bonaparte's Gull | Sound | uu_wss | |
| 134 |
 |
Bonaparte's gulls in western Washington (100127) | 2010-01-27 | Sound | uu_wss |
| 135 |
 |
Boreal Owl 1 | 2007-04-13 | Sound | uu_wss |
| 136 |
|
Boreal Owl 2 | 2007-04-13 | Sound | uu_wss |
| 137 |
|
Boreal Owl 3 | 2007-10-05 | Sound | uu_wss |
| 138 |
|
Boreal Owl 4 | 2007-04-27 | Sound | uu_wss |
| 139 |
|
Boreal Owl 5 | 2007-04-27 | Sound | uu_wss |
| 140 |
|
Boreal Owl 6 | 2009-03-20 | Sound | uu_wss |
| 141 |
|
Boreal Owl in Washington state | Sound | uu_wss | |
| 142 |
 |
Brant 1 | Sound | uu_wss | |
| 143 |
|
Brant 2 | Sound | uu_wss | |
| 144 |
 |
Brant 3 | 2003-03-26 | Sound | uu_wss |
| 145 |
 |
Brewer's Blackbird | Sound | uu_wss | |
| 146 |
 |
Brewer's Sparrow | Sound | uu_wss | |
| 147 |
 |
Bristle-thighed Curlew | Sound | uu_wss | |
| 148 |
 |
Broad-billed Hummingbird | Sound | uu_wss | |
| 149 |
 |
Broad-tailed Hummingbird 1 | Sound | uu_wss | |
| 150 |
|
Broad-tailed Hummingbird 2 | Sound | uu_wss |