Olive-tree Warbler

The Olive-tree Warbler, Hippolais olivetorum, presents itself as a medium-sized warbler, comparable in stature to the barred warbler. It boasts a slightly elongated bill and a marginally shorter tail. As the largest representative of the Hippolais warblers, it is distinguished by a robust bill, a somewhat flattened crown, expansive wings, and sturdy legs. The plumage is characterized by a dusty or brownish-grey back and wings, with dusty-white underparts, creating a subtle, earthy appearance.

Identification Tips

When endeavoring to identify the Olive-tree Warbler, look for its heavy bill and the flatness of its crown. Its long wings and robust legs are also key characteristics. The adult's back and wings are a dusty or brownish-grey, while the underparts are a paler dusty-white. These features set it apart from other warblers in its genus.

Habitat

This species is typically found in open-canopy woodlands, favoring the dappled shade of oakwoods, the silvery leaves of olive groves, and the fruitful boughs of orchards and almond plantations.

Distribution

The Olive-tree Warbler is an Old World warbler that breeds in the southeast of Europe and the Near East. It is a migratory bird, retreating to eastern and southern Africa for the winter months, with its range extending from Kenya down to the southern tip of South Africa.

Behaviour

The Olive-tree Warbler lays a clutch of three or four eggs, which are carefully placed in a nest situated in a low tree or bush, ensuring the next generation's commencement.

Song & Calls

The vocal repertoire of this warbler is a series of loud creaks and squawks. Its song is notably lower in pitch compared to its congeners and is delivered at a slower pace, providing a distinctive auditory clue to its presence.

Diet and Feeding

Invertebrates form the cornerstone of the Olive-tree Warbler's diet, sustaining this bird throughout its range.

Conservation status

The Olive-tree Warbler is currently classified as Least Concern by the IUCN, indicating a stable population without immediate threats to its survival.

Similar Species

While similar in size to the barred warbler, the Olive-tree Warbler can be differentiated by its longer bill, shorter tail, and the distinctive characteristics of its song and habitat preferences.

Breeding

The breeding habits of the Olive-tree Warbler involve the construction of nests in low trees or bushes, where it lays a modest number of eggs, typically three or four, to nurture its young.