| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 251 |
 |
Black Oystercatcher | Sound | uu_wss | |
| 252 |
 |
Black Oystercatcher 2 | 2003-11-18 | Sound | uu_wss |
| 253 |
 |
Black Phoebe | Sound | uu_wss | |
| 254 |
 |
Black Rail 1 | 1994-11-04 | Sound | uu_wss |
| 255 |
|
Black Rail 2 | 1999-07-12 | Sound | uu_wss |
| 256 |
|
Black Rail 3 | 1999-07-12 | Sound | uu_wss |
| 257 |
|
Black Rail 4 | 2007-04-28 | Sound | uu_wss |
| 258 |
|
Black Rail 5 | 2008-05-04 | Sound | uu_wss |
| 259 |
|
Black Rail 6 | 2008-05-04 | Sound | uu_wss |
| 260 |
|
Black Rosy-Finch | Sound | uu_wss | |
| 261 |
 |
Black Scoter | Sound | uu_wss | |
| 262 |
 |
Black Skimmer | Sound | uu_wss | |
| 263 |
|
Black Swift | Sound | uu_wss | |
| 264 |
 |
Black Tern | Sound | uu_wss | |
| 265 |
 |
Black Tern 2 | 2005-06-14 | Sound | uu_wss |
| 266 |
 |
Black Turnstone | Sound | uu_wss | |
| 267 |
|
Black-backed Woodpecker 1 | Sound | uu_wss | |
| 268 |
|
Black-backed Woodpecker 2 | Sound | uu_wss | |
| 269 |
|
Black-backed Woodpecker 3 | Sound | uu_wss | |
| 270 |
|
Black-backed Woodpecker 4 | Sound | uu_wss | |
| 271 |
|
Black-backed Woodpecker 5 | Sound | uu_wss | |
| 272 |
|
Black-backed Woodpecker 6 | Sound | uu_wss | |
| 273 |
|
Black-backed Woodpecker 7 | Sound | uu_wss | |
| 274 |
|
Black-backed Woodpecker 8 | Sound | uu_wss | |
| 275 |
|
Black-backed Woodpecker 9 | Sound | uu_wss |