Right now the scientific names on some species do not show on the site - we are working to fix this problem which should be solved after the back-up this morning.

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iGoTerra has just updated the IOC World Bird List to version 6.4 where it is noteworthy to see a continued reduction of the number of recognized subspecies. Other than that very few changes compared to the previous version. With regard to new species 4 new species splits are almost offset by lumps of Aulacorhynchus Toucanets.


Sulawesi Pitta Erythropitta celebensis is one of many splits from Red-bellied Pitta. Photo from Tangkoko NP, Sulawesi by Kristian Svensson.







For iGoTerra members who use IOC, you will benefit from automatic updates of ALL your lists for Birds! In case you have not yet assigned all your ticks and observations to subspecies, you may have a list of species that you have to manually assign correctly according to the updated taxonomy. These ticks/observations you will find when logged in under Observations => Update my splits and lumps: Birds. Details on the new and deleted species are available on IOC's website where you also are able to see more information of the changes in subspecies so if in doubt where to move your observations on a deleted subspecies this is a very good reference.

In order to be better prepared for the next IOC WBL release in a few months, we recommend you to go through your lists with our Bird subspecies assignment tool (Premium members only).

Summary
The IOC World Bird List 6.3 contains 10,659 (+1 compared to 6.3) extant species and 155 (+0) extinct species classified in 40 (+0) Orders, 238 (+0) Families (plus 2 Incertae Sedis) and 2,294 Genera (+2). The list also includes 20,413 (-77) subspecies, their ranges and authors.


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