(hermanos Salas)
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| Nombre científico | Nombre español | Orden | Familia | English name |
|---|---|---|---|---|
| U | ||||
| Upupa epops | Abubilla | Coraciiformes | Upipidae | Hoopoe |
| Uria aalge | Arao común | Charadriiformes | Alcidae | Guillemot |
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