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Photo: Pierre Dalous / CC BY-SA 3.0 (Wikimedia Commons)

Least Concern

Western Bonelli’s Warbler

Phylloscopus bonelli

Western Bonelli's Warbler (Phylloscopus bonelli) — Songbirds & Perching Birds of Europe & Northern Asia.

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The Western Bonelli’s Warbler (Phylloscopus bonelli) is a member of the Phylloscopidae family found in Europe & Northern Asia. Adults weigh 8.7 g. The IUCN Red List lists it as Least Concern.

LC Least Concern

Widespread and abundant — not currently at risk.

Where it fits

  1. Class Aves
  2. Order Passeriformes
  3. Family Phylloscopidae Leaf Warblers
  4. Genus Phylloscopus
  5. Species bonelli

Where it lives

Spain and Portugal to Austria, Slovenia and Italy

Quick facts

Weight
8.7 g
Habitat
Woodland

How to identify

Similar birds

Biology & behaviour

Diet

The Western Bonelli’s Warbler is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.

Behaviour

A bird of semi-open forest, it spends much of its time perched in trees and shrubs.

Migration

The Western Bonelli’s Warbler is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.

The Western Bonelli’s Warbler (Phylloscopus bonelli) belongs to the Phylloscopidae family of the order Passeriformes. It is found across Europe & Northern Asia. Its distribution covers PAL Spain and Portugal to Austria, Slovenia and Italy.

It is a very small bird. Adults weighs around 8.7 g, with a wing length of about 6.4 cm and a tail of around 5 cm.

The IUCN Red List currently assesses it as Least Concern. That category covers species that remain widespread and reasonably abundant in the wild.

Its mapped global range covers an estimated 1.3 million km².

Songs & calls

Western Bonelli’s Warbler — Song

Recorded by Jordi Calvet Licence: CC BY-NC-ND 4.0

Frequently asked questions

How big is the Western Bonelli’s Warbler?

The Western Bonelli’s Warbler is a very small bird that weighs around 8.7 g.

Where does the Western Bonelli’s Warbler live?

The Western Bonelli’s Warbler is found across Europe & Northern Asia with a range covering PAL Spain and Portugal to Austria, Slovenia and Italy, where it favours woodland, forest and well-treed country.

What family does the Western Bonelli’s Warbler belong to?

The Western Bonelli’s Warbler (Phylloscopus bonelli) belongs to the Phylloscopidae family, in the order Passeriformes.

What does the Western Bonelli’s Warbler eat?

The Western Bonelli’s Warbler is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.

Does the Western Bonelli’s Warbler migrate?

The Western Bonelli’s Warbler is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.

Is the Western Bonelli’s Warbler endangered?

The IUCN Red List currently assesses it as Least Concern That category covers species that remain widespread and reasonably abundant in the wild.

What sound does the Western Bonelli’s Warbler make?

1 real field recording of the Western Bonelli’s Warbler — including its song — can be played in the Songs & calls section on this page, credited to the recordist who captured it.

How large is the Western Bonelli’s Warbler's range?

The Western Bonelli’s Warbler has a mapped global range of about 1.3 million km².

Conservation

Least Concern

Every bird benefits from bird-safe windows, native plants, and keeping cats indoors. Small changes at home add up to real protection.

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