Subalpine Warbler (Sylvia cantillans)

Western Subalpine Warbler (Sylvia iberiae) photographed in Morocco by Phil Gower.

Split of Western and Eastern Subalpine Warblers confirmed

A new study confirmed that the ‘Subalpine Warbler’ complex is indeed three species. In addition to Moltoni’s Warbler, the study recommended that Western and Eastern Subalpine Warblers should be recognised as different species as well. The ‘IOC World Bird List’ accepted the split as proposed by the study. (Research about the “taxonomy of the Subalpine …

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Eastern Subalpine Warbler (Sylvia cantillans albistriata), Merzouga, Morocco (Marc Illa)

First records of Eastern Subalpine Warbler for Morocco

The split of the Subalpine Warbler complex (sensu lato) into three different species (i.e. Moltoni’s, Western and Eastern Subalpine Warblers) was proposed a few years ago. However, currently the Moltoni’s Warbler (Sylvia subalpina), which is the most divergent of the three taxa, is the only widely adopted split by different taxonomic authorities. Although the full …

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New treatment of the three ‘Subalpine Warbler’ species in the updated Collins Bird Guide

Subalpine Warbler split into three species

The Subalpine Warbler complex (sensu lato) is a polytypic species, but the number of ‘subspecies’ considered as valid changed over time. Until the 1990s, only three subspecies were recognised: 1) the nominate S. c. cantillans in Iberia, southern France and Italy, plus the birds breeding in the Western Mediterranean islands were also considered to belong …

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