Bonelli's Warbler: Meaning (information, definition, explanation, facts)

The Bonelli's Warbler, Phylloscopus bonelli, is an Old World warbler in the leaf warbler genus Phylloscopus. As a result of modern taxonomic developments, it is now usually considered to be two species, Western Bonelli's Warbler, Phylloscopus bonelli, and Eastern Bonelli's Warbler, Phylloscopus orientalis.

These small passerine birds are found in forest and woodland. 4-6 eggs are laid in a nest on the ground. Like most warblers, Bonelli's is insectivorous.

These are small warblers. The adults of both species have a plain grey-green back, green-toned rump and wings and whitish underparts. The bill is small and pointed and the legs brown. The sexes are identical, as with most warblers.

Western Bonelli's Warbler breeds in south west Europe and north Africa, and Eastern Bonelli's Warbler in south east Europe and Asia Minor. Both species are migratory, wintering in sub-Saharan Africa. They are rare vagrants in Northern Europe.

Western Bonelli's Warbler has a browner tinge to the upperparts than Eastern Bonelli's Warbler. Eastern Bonelli's Warbler sometimes has a greenish tinge to its upperparts. The song of both species is a fast monotone trill, with only slight differences between the two, and also some similarity to Wood Warbler. The call of the Western Bonelli's Warbler is a disyllabic hu-it, that of the Eastern a completely different hard chup, reminiscent of a Crossbill or a House Sparrow.

This bird is named after the Italian ornithologist Franco Andrea Bonelli.