Western Olivaceous Warbler
Iduna opaca
Reed Warblers and Allies (Acrocephalidae) · Passeriformes · Reed Warblers and Allies
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How to identify Western Olivaceous Warbler
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Often mixed up with
In quizzes, players most often confuse Western Olivaceous Warbler with these birds—either this species was picked by mistake, or the other way around.
| Species | Mix-ups |
|---|---|
| Eastern Olivaceous Warbler Iduna pallida | 51 |
| Melodious Warbler Hippolais polyglotta | 42 |
| Icterine Warbler Hippolais icterina | 24 |
| Common Reed Warbler Acrocephalus scirpaceus | 22 |
| Marsh Warbler Acrocephalus palustris | 12 |
Family
The Acrocephalidae (the reed warblers, marsh- and tree-warblers, or acrocephalid warblers) are a family of oscine passerine birds, in the superfamily Sylvioidea. The species in this family are usually rather large "warblers". Most are rather plain olivaceous brown above with much yellow to beige below.
Order
A passerine () is any bird of the order Passeriformes (; from Latin passer 'sparrow' and formis '-shaped'), which includes more than half of all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their toes (three pointing forward and one back), which facilitates perching. With more than 140 families and some 6,500 identified species, Passeriformes is the largest order of birds and one of the most diverse clades of terrestrial vertebrates, representing 60% of …