The spotless starling (Sturnus unicolor) is a passerine bird in the starling family, Sturnidae. It is closely related to the common starling (S. vulgaris), but has a much more restricted range, confined to the Iberian Peninsula, Northwest Africa, southernmost France, and the islands of Sicily, Corsica and Sardinia. It is largely non-migratory.
The spotless starling uses a wide range of habitats and can be found in any reasonably open environment, from farmland and olive groves to human habitation. The highest population densities are in open grazed holm oak woods, and in urban habitats such as Gibraltar, where it is common. The population has grown in recent decades with a northward expansion in range, spreading to the whole of Spain (previously absent from the northeast) between 1950 and 1980, and colonising locally along the southern coast of mainland France since 1983. Like its more common relative, it is an omnivore, taking a wide variety of invertebrates, berries, and human-provided scraps. It is gregarious, forming sizeable flocks, often mixed with common starlings, of up to 100,000 in winter.
Like most starlings, it is a cavity-nesting species, breeding in tree holes, buildings and in cliff crevices. It typically lays three to five eggs.
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