| The Splits |
|
|
|
|
|
| u | Wren
(Troglodytes troglodytes) to |
|||
| Winter Wren (Troglodytes hiemalis) |
||||
| Eurasian Wren (Troglodytes troglodytes) |
||||
| Pacific Wren (Troglodytes pacificus) |
||||
|
|
|
|
|
|
| u | Whip-poor-will
(Caprimulgus vociferus) to |
||||
| Eastern
Whip-poor-will (Caprimulgus vociferus) |
|||||
| Mexican
Whip-poor-will (Caprimulgus arizonae) |
|||||
|
|
|
|
|
|
| u | Black Scoter
(Melanitta nigra) to |
||||
| Black Scoter
(Melanitta americana) |
|||||
| Common Scoter
(Melanitta nigra) |
|||||