Spanish sparrow
| Spanish sparrow | |
|---|---|
| Male in Sardinia | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Aves | 
| Order: | Passeriformes | 
| Family: | Passeridae | 
| Genus: | Passer | 
| Species: | P. hispaniolensis | 
| Binomial name | |
| Passer hispaniolensis (Temminck, 1820) | |
The Spanish sparrow or willow sparrow (Passer hispaniolensis) is a passerine bird of the sparrow family Passeridae. It is found in the Mediterranean region and south-west and central Asia. It is very similar to the closely related house sparrow, and the two species show their close relation in a "biological mix-up" of hybridisation in the Mediterranean region, which complicates the taxonomy of this species.