Analysis of avian DNA, biometrics and vocalisations add to our understanding of bird species all the time. We cover all the 'splits', lumps and discoveries.

Madagascar Fody appears to not hybridise with other sympatric fody forms, apart from Forest Fody on its native Madagasacar. Photo: Drew Avery (

Weavers' tangled web

Two species of a radiation of finch-like weavers on the Indian Ocean islands have been found to be still hybridising, while the remaining...


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Japanese Bush Warbler has been transferred from the genus Cettia to Horornis after its similarities to Cetti's Warbler were found to be genetically superficial. Photo: M Nishimura (

Cetti's split in two

Newly published research has completely revised the genera of the bush-warbler family Cettidae, including a split in our own familiar...


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Despite many birders hopes, Great Egret is unlikely to be split any time soon. However, the American subspecies is the most likely armchair tick were it to happen. Hans Stieglitz (

Egret keeps it together

A review paper has found that recent moves to split great Egret and Eastern Great Egret are not robust, and that at present the species...


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