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Identification of an Eastern Bonelli’s Warbler in France

Identification of an Eastern Bonelli’s Warbler in France

I couldn’t dream of a better opportunity to write about sonogram analysis !   Last Sunday, we spotted a “weird” Bonelli’s warbler as we were birding together in Vic-la-Gardiole (34, France). Actually, the only real “weird” thing about this bird was that it was alone in the middle of the beach, and that it was quite late for Bonelli’s migration on the coast. It looked dull, but we would probably have written it down as Western with no regret if it was in…

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The wagtail conundrum

The wagtail conundrum

Yellow wagtail’s phylogeny is confusing : there are many subspecies, that are visually much different from each other. Some taxa like tschutschensis are now often considered as distinct species, and Citrine wagtail (Motacilla citreola) forms a cryptic species complex with flava (i.e there are hybrids). Interestingly, the flight calls of these taxa are also different. Even if much caution must be taken regarding a sound-based subspecific identification, the following sonograms should help to point out some differences. Beware of song notes that can be…

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