 |
|
 |
Bubo virginianus |
|
Texas, 1882 |
|
Strix varia |
|
Wisconsin, 1896 |
|
Asio flammeus |
|
Michigan, 1887 |
|
Surnia ulula |
|
Alberta, 1894 |
|
Athene cunicularia |
|
California, 1883 |
|
Otus asio |
|
New York, 1899 |
|
Asio otus |
|
Wisconsin, 1914 |
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