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 updated the IOC World Bird List to version 7.3. The new version contains 14 species splits and 2 lumped species where noteworthy that Glossy Swiftlet is now split across 8 species. Thayer's Gull has been lumped with Iceland Gull.

Formerly Glossy Swiftlet Collocalia esculenta natalis, but from now on the species Christmas Island Swiftlet C. natalis from Christmas Island. Photo: Geoffrey Jones

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 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. You should also refresh your checklists downloaded to Pocket to ensure that the new species are included.

Northern Shrike Lanius borealis (incl sibiricus, bianchii, mollis, and funereus) is separated from Great Grey Shrike. This is L. borealis from Alaska. Photo: Stefan Cherrug

The IOC World Bird List 7.3 contains 10,693 (+12 compared to 7.2) extant species and 158 (-1) extinct species classified in 40 (+0) Orders, 238 (+0) Families (plus 2 Incertae Sedis) and 2,297 Genera (+2). The list also includes 20,074 subspecies, their ranges and authors. On the species page on the iGoTerra website, any changes are shown under Taxonomic comment.

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